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The STEN (or Sten gun) is a family of British
submachine gun A submachine gun (SMG) is a magazine-fed, automatic carbine designed to fire handgun cartridges. The term "submachine gun" was coined by John T. Thompson, the inventor of the Thompson submachine gun, to describe its design concept as an autom ...
s chambered in 9×19mm which were used extensively by
British and Commonwealth British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, ...
forces throughout
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
and the
Korean War , date = {{Ubl, 25 June 1950 – 27 July 1953 (''de facto'')({{Age in years, months, weeks and days, month1=6, day1=25, year1=1950, month2=7, day2=27, year2=1953), 25 June 1950 – present (''de jure'')({{Age in years, months, weeks a ...
. They had a simple design and very low production cost, making them effective insurgency weapons for resistance groups, and they continue to see usage to this day by
irregular military Irregular military is any non-standard military component that is distinct from a country's national armed forces. Being defined by exclusion, there is significant variance in what comes under the term. It can refer to the type of military orga ...
forces. The Sten served as the basis for the
Sterling submachine gun The Sterling submachine gun is a British submachine gun (SMG). It was tested with the British Army in 1944–1945 as a replacement for the Sten but it did not start to replace it until 1953. A successful and reliable design, it remained as stan ...
, which replaced the Sten in British service until the 1990s, when it, and all other submachine guns, were replaced by the
SA80 The SA80 (Small Arms for the 1980s) is a British family of 5.56×45mm NATO service weapons used by the British Army. The L85 Rifle variant has been the standard issue service rifle of the British Armed Forces since 1987, replacing the L1A1 Se ...
. The Sten is a
select fire Selective fire is the capability of a weapon to be adjusted to fire in semi-automatic, fully automatic, and/or burst mode. The modes are chosen by means of a selector switch, which varies depending on the weapon's design. Some selective-fire we ...
,
blowback-operated Blowback is a system of operation for self-loading firearms that obtains energy from the motion of the cartridge case as it is pushed to the rear by expanding gas created by the ignition of the propellant charge. Several blowback systems exist ...
weapon which mounts its magazine on the left. Sten is an
acronym An acronym is a word or name formed from the initial components of a longer name or phrase. Acronyms are usually formed from the initial letters of words, as in ''NATO'' (''North Atlantic Treaty Organization''), but sometimes use syllables, as ...
, from the names of the weapon's chief designers, Major Reginald V. Shepherd and Harold J. Turpin, and "En" for the Enfield factory. Over four million Stens in various versions were made in the 1940s, making it the second most produced
submachine gun A submachine gun (SMG) is a magazine-fed, automatic carbine designed to fire handgun cartridges. The term "submachine gun" was coined by John T. Thompson, the inventor of the Thompson submachine gun, to describe its design concept as an autom ...
of the Second World War, after the Soviet PPSh-41.


History

The Sten emerged while Britain was engaged in the
Battle of Britain The Battle of Britain, also known as the Air Battle for England (german: die Luftschlacht um England), was a military campaign of the Second World War, in which the Royal Air Force (RAF) and the Fleet Air Arm (FAA) of the Royal Navy defende ...
, facing invasion by
Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
. The army was forced to replace weapons lost during the evacuation from Dunkirk while expanding at the same time. After the start of the war and to 1941 (and even later), the British purchased all the
Thompson submachine gun The Thompson submachine gun (also known as the "Tommy Gun", "Chicago Typewriter", "Chicago Piano", “Trench Sweeper” or "Trench Broom") is a blowback-operated, air-cooled, magazine-fed selective-fire submachine gun, invented by United Stat ...
s they could from the United States, but these did not meet demand, and Thompsons were expensive, the M1928 costing $200 in 1939 (and still $70 in 1942), whereas a Sten would turn out to cost only $11. American entry into the war at the end of 1941 placed an even bigger demand on the facilities making Thompsons. In order to rapidly equip a sufficient fighting force to counter the Axis threat, the Royal Small Arms Factory,
Enfield Enfield may refer to: Places Australia * Enfield, New South Wales * Enfield, South Australia ** Electoral district of Enfield, a state electoral district in South Australia, corresponding to the suburb ** Enfield High School (South Australia) ...
, was commissioned to produce an alternative. The credited designers were Major R. V. Shepherd, OBE, Inspector of Armaments in the
Ministry of Supply The Ministry of Supply (MoS) was a department of the UK government formed in 1939 to co-ordinate the supply of equipment to all three British armed forces, headed by the Minister of Supply. A separate ministry, however, was responsible for aircr ...
Design Department at The
Royal Arsenal The Royal Arsenal, Woolwich is an establishment on the south bank of the River Thames in Woolwich in south-east London, England, that was used for the manufacture of armaments and ammunition, proofing, and explosives research for the Britis ...
,
Woolwich Woolwich () is a district in southeast London, England, within the Royal Borough of Greenwich. The district's location on the River Thames led to its status as an important naval, military and industrial area; a role that was maintained throu ...
, (later Assistant Chief Superintendent at the Armaments Design Department) and Harold John Turpin, Senior
Draughtsman A draughtsman (British spelling) or draftsman (American spelling) may refer to: * An architectural drafter, who produced architectural drawings until the late 20th century * An artist who produces drawings that rival or surpass their other types ...
of the Design Department of the Royal Small Arms Factory (RSAF), Enfield. Shepherd had been recalled to service after having retired and spending some time at the
Birmingham Small Arms Company The Birmingham Small Arms Company Limited (BSA) was a major British industrial combine, a group of businesses manufacturing military and sporting firearms; bicycles; motorcycles; cars; buses and bodies; steel; iron castings; hand tool, hand, po ...
(BSA). The Sten shared design features, such as its side-mounted magazine configuration, with the
Lanchester submachine gun The Lanchester is a submachine gun (SMG) manufactured by the Sterling Armaments Company between 1941 and 1945. It is a copy of the German MP28/II and was manufactured in two versions, Mk.1 and Mk.1*; the latter was a simplified version of the ...
being produced at the same time for the
Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against F ...
and
Royal Air Force The Royal Air Force (RAF) is the United Kingdom's air and space force. It was formed towards the end of the First World War on 1 April 1918, becoming the first independent air force in the world, by regrouping the Royal Flying Corps (RFC) and ...
, which was a copy of the German MP28. In terms of manufacture, the Lanchester was entirely different, being made of high-quality materials with pre-war fit and finish, in stark contrast to the Sten's austere execution. The Lanchester and Sten magazines were even interchangeable (though the Lanchester's magazine was longer with a 50-round capacity, compared to the Sten's 32.) The Sten used simple stamped metal components and minor welding, which required minimal machining and manufacturing. Much of the production could be performed by small workshops, with the firearms assembled at the Enfield site. Over the period of manufacture, the Sten design was further simplified: the most basic model, the Mark III, could be produced from five man-hours of work. Some of the cheapest versions were made from only 47 different parts. The Mark I was a more finely finished weapon with a wooden foregrip and handle; later versions were generally more spartan, although the final version, the Mark V, which was produced after the threat of invasion had died down, was produced to a higher standard. The Sten underwent various design improvements over the course of the war. For example, the Mark 4 cocking handle and corresponding hole drilled in the receiver were created to lock the bolt in the closed position to reduce the likelihood of
unintentional discharge An unintentional discharge is the event of a firearm discharging (firing) at a time not intended by the user. An unintended discharge may be produced by an incompatibility between firearm design and usage, such as the phenomenon of cooking off a ...
s inherent in the design. Most changes to the production process were more subtle, designed to give greater ease of manufacture and increased reliability, and the potentially great differences in build quality contributed to the Sten's reputation as being an unreliable weapon. However, a 1940 report stated that "Exaggerated reports about the unreliability
f the Sten F, or f, is the sixth letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''ef'' (pronounced ), and the plural is ''efs''. Hist ...
were usually related to the quality of manufacture. Don Handscombe and his comrades in the Thundersley Patrol of the
Auxiliary Units The Auxiliary Units or GHQ Auxiliary Units were specially-trained, highly-secret quasi military units created by the British government during the Second World War with the aim of using irregular warfare in response to a possible invasion of the U ...
rated them more reliable than the
Thompson SMG The Thompson submachine gun (also known as the "Tommy Gun", "Chicago Typewriter", "Chicago Piano", “Trench Sweeper” or "Trench Broom") is a blowback-operated, air-cooled, magazine-fed selective-fire submachine gun, invented by United Sta ...
." Sten guns of late 1942 and beyond were highly effective weapons, though complaints of accidental discharge continued throughout the war. The Sten was replaced by the
Sterling submachine gun The Sterling submachine gun is a British submachine gun (SMG). It was tested with the British Army in 1944–1945 as a replacement for the Sten but it did not start to replace it until 1953. A successful and reliable design, it remained as stan ...
from 1953 and was gradually withdrawn from British service in the 1960s. Other Commonwealth nations followed suit, either by creating their own replacements or adopting foreign designs.


Design

The Sten was a
blowback-operated Blowback is a system of operation for self-loading firearms that obtains energy from the motion of the cartridge case as it is pushed to the rear by expanding gas created by the ignition of the propellant charge. Several blowback systems exist ...
submachine gun A submachine gun (SMG) is a magazine-fed, automatic carbine designed to fire handgun cartridges. The term "submachine gun" was coined by John T. Thompson, the inventor of the Thompson submachine gun, to describe its design concept as an autom ...
firing from an
open bolt A firearm is said to fire from an open bolt if, when ready to fire, the bolt and working parts are held to the rear of the receiver, with no round in the chamber. When the trigger is actuated, the bolt travels forward, feeds a cartridge from t ...
with a fixed firing pin on the face of the bolt. This means the bolt remains to the rear when the weapon is cocked and on pulling the trigger the bolt moves forward from spring pressure, stripping the round from the magazine, chambering it and firing the weapon all in the same movement. There is no breech locking mechanism, the rearward movement of the bolt caused by the recoil impulse is arrested only by the mainspring and the bolt's inertia. The German
MP40 The MP 40 (''Maschinenpistole 40'') is a submachine gun chambered for the 9×19mm Parabellum cartridge. It was developed in Nazi Germany and used extensively by the Axis powers during World War II. Designed in 1938 by Heinrich Vollmer with in ...
, Russian PPSh-41, and US
M3 submachine gun The M3 is an American .45-caliber submachine gun adopted by the U.S. Army on 12 December 1942, as the United States Submachine Gun, Cal. .45, M3.Iannamico, Frank, ''The U.S. M3-3A1 Submachine Gun'', Moose Lake Publishing, , (1999), pp. 14, 22 ...
, among others, used the same operating mechanisms and design philosophy of the Sten, namely their low cost and ease of manufacture. Though the MP40 was also built largely for this purpose,
Otto Skorzeny Otto Johann Anton Skorzeny (12 June 1908 – 5 July 1975) was an Austrian-born German SS-''Obersturmbannführer'' (lieutenant colonel) in the Waffen-SS during World War II. During the war, he was involved in a number of operations, including th ...
went on record saying that he preferred the Sten because it required less
raw material A raw material, also known as a feedstock, unprocessed material, or primary commodity, is a basic material that is used to produce goods, finished goods, energy, or intermediate materials that are feedstock for future finished products. As feedst ...
to produce and performed better under adverse combat conditions. The effect of putting lightweight automatic weaponry into the hands of soldiers greatly increased the short-range firepower of the infantry, especially when the main infantry weapon was a
bolt-action rifle Bolt-action is a type of manual firearm action that is operated by ''directly'' manipulating the bolt (firearms), bolt via a cocking handle, bolt handle, which is most commonly placed on the right-hand side of the weapon (as most users are r ...
capable of only around 15 rounds per minute and not suited for short-range combat. The open-bolt firing mechanism, short barrel and use of pistol ammunition severely restricted accuracy and
stopping power Stopping power is the ability of a weapon – typically a ranged weapon such as a firearm – to cause a target (human or animal) to be incapacitated or immobilized. Stopping power contrasts with lethality in that it pertains only to a weapon's ...
, with an effective range of only around , compared to for the
Lee–Enfield The Lee–Enfield or Enfield is a bolt-action, magazine-fed repeating rifle that served as the main firearm of the military forces of the British Empire and Commonwealth during the first half of the 20th century, and was the British Army's st ...
rifle. Stoppages could occur for poor maintenance, while others were particular to the Sten. Carbon build up on the face of the breech or debris in the bolt raceway could cause a failure to fire, while a dirty chamber could cause a failure to feed. Heavy carbon buildup could prevent the firing pin from detonating the primer. Firing the Sten by grasping the magazine with the supporting hand, contrary to instruction, tended to wear the magazine catch, altering the angle of feed and causing a failure to feed; the correct method of holding the weapon was as with a rifle, the left hand cradling the fore piece. The Sten's magazine, which, like the Lanchesters, derived from the MP28, originally to use its magazines, which incorporated the faults of the MP28 magazine. The magazine had two columns of 9 mm cartridges in a staggered arrangement, merging at the top to form a column. While other staggered magazines, such as the Thompson, fed from the left and right side alternately (known as "double column, double feed"), the Sten magazine required the cartridges gradually to merge at the top of the magazine to form a column ("double column, single feed"). Dirt or foreign matter in this taper area could cause feed malfunctions. The walls of the magazine lip had to endure the full stresses of the rounds being pushed in by the spring. This, along with rough handling could result in deformation of the magazine lips (which required a precise 8° feed angle to operate), resulting in misfeeding and a failure to fire. If a Sten failed to feed due to jammed cartridges in the magazine, standard practice to clear it was to remove magazine from the gun, tap the base of the magazine against the knee, re-insert the magazine, then re-cock the weapon and fire again as normal. To facilitate easier loading when attempting to push the cartridges down to insert the next one, a magazine filler tool was developed and formed part of the weapon's kit. The slot on the side of the body where the cocking knob ran was also a target of criticism, as the long opening could allow foreign objects to enter. On the other hand, a beneficial side-effect of the Sten's
minimalist In visual arts, music and other media, minimalism is an art movement that began in post–World War II in Western art, most strongly with American visual arts in the 1960s and early 1970s. Prominent artists associated with minimalism include Don ...
design was that it would fire without any lubrication. This proved useful in desert environments such as the Western Desert campaign, where lubricating oil retained dust and sand. The open bolt design combined with cheap manufacture and rudimentary safety devices also meant the weapon was prone to accidental discharges, which proved hazardous. A simple safety could be engaged while the bolt was in the rearwards (cocked) position. However, if a loaded Sten with the bolt in the closed position was dropped, or the butt was knocked against the ground, the bolt could move far enough rearward to pick up a round (but not far enough to be engaged by the trigger mechanism) and the spring pressure could be enough to chamber and fire the round. The Mk. IV's cocking handle was designed to prevent this by enabling the bolt to be locked in its forward position, immobilising it. Wear and manufacturing tolerances could render these safety devices ineffective. Though the Sten was somewhat prone to malfunction, in the hands of a well-trained soldier, who knew and how to avoid the Sten's failings, they were less of a liability as otherwise may be suggested. According to Leroy Thompson, "Troops usually made the conscious choice to keep the Sten with a magazine in place, based on the assumption that they might need it quickly. It might, then, be argued that more troops were saved by having their Sten ready when an enemy was suddenly encountered than were injured by accident. The Sten was more dangerous to its users than most infantry weapons, but all weapons are dangerous".


Variants

Sten guns were produced in several basic marks, of which nearly half of the total produced consisted of the Mark II variant. Approximately 4.5 million Stens were produced during the Second World War.


Mark I

The first ever Mk I Sten gun (number 'T-40/1' indicating its originator Harold Turpin, the year 1940 and the serial number "1") was handmade by Turpin at the Philco Radio works at
Perivale Perivale () is an area of Greater London, west of Charing Cross. It is the smallest of the seven towns which make up the London Borough of Ealing. Perivale is mostly residential, with a library, community centre, a number of parks and open ...
,
Middlesex Middlesex (; abbreviation: Middx) is a Historic counties of England, historic county in South East England, southeast England. Its area is almost entirely within the wider urbanised area of London and mostly within the Ceremonial counties of ...
during December 1940/January 1941. This particular weapon is held by the historical weapons collection of the
British Army The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. , the British Army comprises 79,380 regular full-time personnel, 4,090 Gurk ...
's Infantry and Small Arms School Corps in
Warminster Warminster () is an ancient market town with a nearby garrison, and civil parish in south west Wiltshire, England, on the western edge of Salisbury Plain. The parish had a population of about 17,000 in 2011. The 11th-century Minster Church of S ...
,
Wiltshire Wiltshire (; abbreviated Wilts) is a historic and ceremonial county in South West England with an area of . It is landlocked and borders the counties of Dorset to the southwest, Somerset to the west, Hampshire to the southeast, Gloucestershire ...
. The Mark I had a conical
flash hider A flash suppressor, also known as a flash guard, flash eliminator, flash hider, or flash cone, is a muzzle device attached to the muzzle of a rifle that reduces its visible signature while firing by cooling or dispersing the burning gases that ...
and fine finish. The
foregrip A vertical forward grip or foregrip is a vertical pistol grip mounted on the fore-end of a long-barrel firearm, designed for grasping by the frontal support hand (or "off hand"). Use Forward grips aid in the maneuverability of the firearm, ...
, forward handle and some of the stock were made of wood. The stock consisted of a small tube, similar to the Mark II Canadian. A design choice that was only present on the Mark I was that the pistol grip could be rotated forward to make it easier to stow. 100,000 Mark I Stens were made before production was moved to the Mark II. Mark I Stens in German possession were designated MP 748(e), the 'e' standing for ''englisch''.


Mark I*

To simplify production of the Mark I, the foregrip, wooden furniture and flash hider were removed with this variant.


Mark II

The Mark II was the most common variant, with two million units produced. The flash eliminator and the folding handle (the grip) of the Mk I were omitted. A removable barrel was now provided which projected beyond the barrel sleeve. Also, a special catch allowed the magazine to be slid partly out of the magazine housing and the housing rotated 90 degrees counter-clockwise (from the operator's perspective), together covering the ejection opening and allowing the weapon and magazine both to lie flat on its side. The barrel sleeve was shorter and rather than having small holes on the top, it had three sets of three holes equally spaced on the shroud. To allow a soldier to hold a Sten by the hot barrel sleeve with the supporting hand, an insulating lace-on leather sleeve guard was sometimes issued. Sten Mk II's in German possession were designated MP 749(e). Some Mk IIs had wooden stocks. The Spz-kr assault rifle, a rudimentary German design made in the closing stages of the war, used the receiver and components from the Sten Mk II, and the
MP 3008 The 9×19mm MP 3008 (''Maschinenpistole 3008'' or "machine pistol 3008", also Volks-MP.3008 and Gerät Neumünster) was a German last ditch submachine gun manufactured towards the end of World War II in early 1945. Also known as the ''Volksmas ...
was made as a cheap copy. * Overall length: * Barrel length: * Weight:


Mark II (Canadian)

During World War II a version of the Sten gun was produced at the Long Branch Arsenal in Long Branch, Ontario (now part of
Toronto Toronto ( ; or ) is the capital city of the Canadian province of Ontario. With a recorded population of 2,794,356 in 2021, it is the most populous city in Canada and the fourth most populous city in North America. The city is the ancho ...
). This was very similar to the regular Mark II, with a different stock ('skeleton' type instead of strut type). It was first used in combat in the
Dieppe Raid Operation Jubilee or the Dieppe Raid (19 August 1942) was an Allied amphibious attack on the German-occupied port of Dieppe in northern France, during the Second World War. Over 6,050 infantry, predominantly Canadian, supported by a regiment o ...
in 1942. The Mark II is made in China with a copy known as the M38. The Chinese M38s were made in an automatic-only configuration, unlike the standard Mark II. The M38 was made in 9×19mm and 7.62×25mm Tokarev variants. * Overall length: * Barrel length: * Weight:


Mark III

After the Mark II, this was the most produced variant of the Sten, manufactured in Canada alongside the United Kingdom, with
Lines Bros Ltd Lines Bros Ltd was a British toy manufacturer of the 20th century, operating under the Tri-ang Toys brand name. Lines Bros Ltd, at its peak in 1947, was claimed by the company to be the largest toy maker in the world. Under the Tri-ang Toys bran ...
being the largest producer. The Mark III was made of 48 parts, compared to the Mark II's 69, but the Mark II remained more commonplace for logistical reasons – parts between the two were not interchangeable. Though slightly lighter, the magazine well was fixed in place, and the barrel could not be removed, meaning if it was damaged the weapon had to be scrapped. Combined with the fact the Mark III was more prone to failure than the Mark II, production of the weapon ceased in September 1943. Unlike the Mark II, the receiver, ejection port, and barrel shroud were unified, leading to them being extended further up the barrel. Captured Sten Mk III's in German possession were designated MP 750(e). A total of 876,886 Mark III's were produced.


Mark V

The Mark V added a bayonet mount, and a wooden pistol grip and stock. There was a No. 4
Lee–Enfield The Lee–Enfield or Enfield is a bolt-action, magazine-fed repeating rifle that served as the main firearm of the military forces of the British Empire and Commonwealth during the first half of the 20th century, and was the British Army's st ...
rear sight and the weapon was of better quality manufacture and finish than the Mk II and Mk III. Another variant of the Mk V had a swivel stock and rear sight mirror intended for firing around corners in urban warfare, similar to the Krummlauf developed by the Germans for the
StG 44 The StG 44 (abbreviation of Sturmgewehr 44, "assault rifle 44") is a German assault rifle developed during World War II by Hugo Schmeisser. It is also known by its early designations as the MP 43 and MP 44 (''Maschinenpistole 43'' and ''44''). ...
.


Suppressed models

Mk II(S) and Mk VI models incorporated an integral
suppressor A silencer, also known as a sound suppressor, suppressor, or sound moderator, is a muzzle device that reduces the acoustic intensity Sound intensity, also known as acoustic intensity, is defined as the power carried by sound waves per unit ...
and had a lower muzzle velocity than the others due to a ported barrel intended to reduce velocity to below the
speed of sound The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. At , the speed of sound in air is about , or one kilometre in or one mile in . It depends strongly on temperature as w ...
– – without needing special ammunition. The suppressor heated up rapidly when the weapon was fired, and a canvas cover was laced around the suppressor for protection for the firer's supporting hand. ; Mk II(S): Designed in 1943, the Mk II(S) ("Special-Purpose") was an integrally suppressed version of the Mk II. Captured examples of the Sten Mk II(S) in German service were designated MP 751(e). ; Mk VI: The Mk VI was a suppressed version of the Mk V. The Mk VI was the heaviest version due to the added weight of the suppressor, as well as using a wooden pistol grip and stock. The suppressed models were produced at the request of the
Special Operations Executive The Special Operations Executive (SOE) was a secret British World War II organisation. It was officially formed on 22 July 1940 under Minister of Economic Warfare Hugh Dalton, from the amalgamation of three existing secret organisations. Its pu ...
(SOE) for use in clandestine operations in occupied Europe, starting with the Mk II(S) in 1943. Owing to their tendency to overheat, they were fired in short bursts or single shots. Some guns were even changed to semi-automatic only. In addition to its use in the
European theatre The European theatre of World War II was one of the two main theatres of combat during World War II. It saw heavy fighting across Europe for almost six years, starting with Germany's invasion of Poland on 1 September 1939 and ending with the ...
, the Mk II(S) saw service with clandestine units in the
Southwest Pacific Area South West Pacific Area (SWPA) was the name given to the Allied supreme military command in the South West Pacific Theatre of World War II. It was one of four major Allied commands in the Pacific War. SWPA included the Philippines, Borneo, the ...
(SWPA) such as the
Services Reconnaissance Department Services Reconnaissance Department (SRD), also known as Special Operations Australia (SOA) and previously known as Inter-Allied Services Department (ISD), was an Australian military intelligence and special reconnaissance unit, during World War II. ...
and SOE's
Force 136 Force 136 was a far eastern branch of the British World War II intelligence organisation, the Special Operations Executive (SOE). Originally set up in 1941 as the India Mission with the cover name of GSI(k), it absorbed what was left of SOE's Or ...
on operations against the
Imperial Japanese Army The was the official ground-based armed force of the Empire of Japan from 1868 to 1945. It was controlled by the Imperial Japanese Army General Staff Office and the Ministry of the Army, both of which were nominally subordinate to the Emperor o ...
. The Sten Mk II(S) was used by the
Operation Jaywick Operation Jaywick was a special operation undertaken in World War II. In September 1943, 14 commandos and sailors from the Allied Z Special Unit raided Japanese shipping in Singapore Harbour, sinking six ships. Background Special Operations ...
party during their raid into Japanese-occupied
Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, borde ...
Harbour. The Sten Mk II(S) also saw service with the
Special Air Service Regiment The Special Air Service Regiment, officially abbreviated SASR though commonly known as the SAS, is a special forces unit of the Australian Army. Formed in 1957, it was modelled on the British SAS sharing the motto, "Who Dares Wins". The reg ...
during the
Vietnam War The Vietnam War (also known by #Names, other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vie ...
.


Experimental models

; Mark II (wooden stock model): This was a standard Sten Mk.II with a wooden stock attached in place of the wireframe steel stock used with Mk.IIs. This wooden stock model was never put into service; likely due to the cost of producing it. ; Mark II (Rosciszewski model): This was a Sten Mk.II modified by Antoni Rosciszewski of Small Arms Ltd. The magazine was mechanically operated by the breech block movement. The trigger was split into two sections, with the upper part of the trigger offering full-auto fire and a lower part offering single shots. It was very complex in design and never fielded. ; Mark II (pistol grip model): This was a Sten Mk.II with a wireframe
pistol grip On a firearm or other tools, a pistol grip is a distinctly protruded handle underneath the main mechanism, to be held by the user's hand at a more vertical (and thus more ergonomic) angle, similar to the how one would hold a conventional pist ...
, intended for use with paratroopers. It was compact but predictably uncomfortable to fire. ; Model T42: This was a Sten Mk.II modified with a 5-inch barrel and
folding stock A gunstock or often simply stock, the back portion of which is also known as a shoulder stock, a buttstock or simply a butt, is a part of a long gun that provides structural support, to which the barrel, action, and firing mechanism are attached ...
, as well as a conventional pistol grip and redesigned trigger guard. It was dubbed the "T42" in prototype phases, but never entered service. ; Mark IV: The Mark IV was a smaller variant of the Sten, comparable in size to a pistol, and never left the prototype stage. It used a conical flash hider, a shortened barrel, and a much lighter stock. ; Rofsten: Developed at the Royal Ordnance Factory in Fazakerley (
ROF Fazakerley ROF Fazakerley was a Royal Ordnance Factory rifle manufacturing plant in Fazakerley, Liverpool, which manufactured small arms such as the Sten and Sterling submachine guns and Lee–Enfield rifle during and after World War II. ROF Fazakerley ...
), the Rofsten was an odd Sten prototype with a redesigned magazine feed, ergonomic pistol grip, selector switch and cocking system. The weapon was cocked by pulling the small ring above the stock. A large flash eliminator was fixed onto the barrel, and a No.5 bayonet could be fixed. It was made to a very high quality standard and had an increased rate of fire (around 900 rounds per minute). The Rofsten was made in 1944 as a single prototype and ROF wanted to submit it to trials the next year. Despite better quality there were numerous reliability problems due to the much higher rate of fire. The budget cuts prevented the modifications and this version never got beyond the prototype stage.


Foreign-built variants and post-1945 derivatives

; Argentina: Sten MkIIs were licence-copied in Argentina by Pistola Hispano Argentino and can be recognised with a wooden handguard in front of the trigger group. It was known as the Modelo C.4. Another variant came with a pistol grip section based on the Ballester–Molina .45 pistol. The
Halcon ML-57 Halcon or Halcones, may refer to: People * Pequeño Halcón (aka Rogelio Espinoza López), Mexican masked wrestler * Super Halcón Jr. (born 1987), Mexican masked wrestler * El Halcón (born 1947, as José Luis Melchor Ortiz), Mexican masked w ...
was a simpler derivative of the Sten gun of Argentine origin that was fed from a vertically inserted magazine. ; Israel: Copies of the Sten Mk II and Sten Mk V were clandestinely manufactured in Tel Aviv and on various
kibbutz A kibbutz ( he, קִבּוּץ / , lit. "gathering, clustering"; plural: kibbutzim / ) is an intentional community in Israel that was traditionally based on agriculture. The first kibbutz, established in 1909, was Degania. Today, farming h ...
im in 1945-48 for use with
Haganah Haganah ( he, הַהֲגָנָה, lit. ''The Defence'') was the main Zionist paramilitary organization of the Jewish population ("Yishuv") in Mandatory Palestine between 1920 and its disestablishment in 1948, when it became the core of the ...
and other Jewish paramilitary groups. ; France: The French "Gnome et Rhône" R5 Sten, manufactured by the motorbike and aeroplane engine manufacturer
Gnome et Rhône Gnome et Rhône was a major French aircraft engine manufacturer. Between 1914 and 1918 they produced 25,000 of their 9-cylinder Delta and Le Rhône 110 hp (81 kW) rotary designs, while another 75,000 were produced by various licen ...
(SNECMA), came with a forward pistol grip and distinctive wooden stock, although its greatest improvement was a sliding bolt safety, added to secure the bolt in its forward position. Another variant made by MAC (Manufacture d’armes de Châtellerault), were made and tested shortly after WWII. One variant had an unusual stock shape that proved detrimental to the firer's aim. Internally it was basically a Sten gun but had two triggers for semi/full auto, a grip safety and a foregrip that used MP40 magazines. Another had a folding stock with a folding magazine insert. The trigger mechanism was complicated and unusual. Neither of these prototypes had any kind of success and MAC closed its doors not long after their conception. The French were not short of SMGs after the war; they had some 3,750 Thompsons and Stens, as well as MAS 38s. ; Norway: The Norwegian resistance, under the leadership of
Bror With Bror With (19 June 1900 – 9 December 1985) was a Norwegian mechanical engineer, inventor and industrialist. Bror With is perhaps most associated with his invention of the ''Rottefella'' ("Rat Trap") ski binding, which he developed in 1927. Af ...
, created a large number of Sten guns from scratch, mainly to equip members of the underground army ''
Milorg Milorg (abbreviation of militær organisasjon – military organization) was the main Norwegian resistance movement during World War II. Resistance work included intelligence gathering, sabotage, supply-missions, raids, espionage, transport of ...
''. In his autobiography, Norwegian resistance fighter
Max Manus Maximo Guillermo "Max" Manus DSO, MC & Bar (9 December 1914 – 20 September 1996) was a Norwegian resistance fighter during World War II, specialising in sabotage in occupied Norway. After the war he wrote several books about his adventure ...
frequently mentions the Sten as one of the weapons his groups of commandos and resistance fighters used effectively against German troops. ; Denmark: Several groups in the Danish resistance movement manufactured Sten guns for their own use.
BOPA BOPA ( da, Borgerlige Partisaner, Civil Partisans) was a group of the Danish resistance movement; it was affiliated with the communists and developed after the occupation of Denmark by Nazi Germany during the Second World War. In 1942, the Commu ...
produced around 200 in a bicycle repair shop on Gammel Køge landevej (Old Køge road), south of Copenhagen.
Holger Danske Holger may refer to: People * Holger (given name), includes name origin, plus people with the name * Hilde Holger, stage name of dancer, choreographer and dance teacher Hilde Boman-Behram (née Hilde Sofer, 1905–2001) Fictional characters * Holg ...
produced about 150 in workshops in Copenhagen, while employees of the construction company
Monberg & Thorsen Monberg is a surname. List of people with the surname * Børge Monberg (1905–1990), Danish field hockey player * Jesper B. Monberg (born 1977), Danish speedway rider * Michael Monberg (born 1978), Danish politician * Terese Guinsatao Monber ...
built approximately 200–300 in what is now the municipality of
Gladsaxe Gladsaxe Kommune is a municipality (Danish, '' kommune'') near Copenhagen in Region Hovedstaden on the island of Zealand (''Sjælland'') in eastern Denmark. The municipality covers an area of , and has a total population of 69,681 (2019). Its ma ...
(a suburb of Copenhagen) for use by Holger Danske and others. The resistance groups 'Frit Danmark' and 'Ringen' also built significant numbers of Stens. ; Poland: From 1942 and 1944, approximately 11,000 Sten Mk IIs were delivered to the ''
Armia Krajowa The Home Army ( pl, Armia Krajowa, abbreviated AK; ) was the dominant resistance movement in German-occupied Poland during World War II. The Home Army was formed in February 1942 from the earlier Związek Walki Zbrojnej (Armed Resistance) esta ...
'' by the SOE and
Cichociemni ''Cichociemni'' (; the "Silent Unseen") were elite special-operations paratroopers of the Polish Army in exile, created in Great Britain during World War II to operate in occupied Poland (''Cichociemni Spadochroniarze Armii Krajowej''). Kazimi ...
. Because of the simplicity of the design, local production of Sten variants was started in at least 23 underground workshops in Poland, with some producing copies of the Mark II, and others developing their own designs, namely the '', Błyskawica'' and ''
KIS Kis or KIS may refer to: Places * Kiş, Khojavend, Azerbaijan * Kiş, Shaki, Azerbaijan * Kish (Sumer) (Sumerian: Kiš), an ancient city in Sumer * Kis, Babol Kenar, a village in Mazandaran Province, Iran * Kis, Bandpey-ye Gharbi, a village in ...
''. Polski Stens made in Warsaw under the command of Ryszard Białostocki were built from parts made in official factories, with the main body of the design being made from hydraulic cylinders produced for hospital equipment. To help disguise their origin, the Polski Stens were marked in English. ; Belgium: A little known version of the MkII Sten was built in Belgium by ''l'arsenale militare belga'' (the Belgian military arsenal). The magazine well was stamped AsArm (the manufacturer), ABL (for Armée Belge Belgisch Leger), the Belgian Royal Crown and a serial number of typically five figure with no letter prefix. It is believed the Belgian built Mk II Stens remained in ABL service until the early 1980s, particularly with helicopter-borne forces. Some of the weapons had a "Parkerised" finish. After the Second World War the Belgian Army was mainly equipped with a mixture of British and American submachine guns. The army, wanting to replace them with a modern and preferably native design, tested various designs with the Vigneron M2 and licence-produced FN Uzi being selected. However, the Imperia was an improved Sten with a fire selector and retractable stock. ; Germany: In late 1944,
Mauser Mauser, originally Königlich Württembergische Gewehrfabrik ("Royal Württemberg Rifle Factory"), was a German arms manufacturer. Their line of bolt-action rifles and semi-automatic pistols has been produced since the 1870s for the German arme ...
began to produce copies of the Mk II Sten for sabotage purposes. The series was referred to as the ''Gerät Potsdam'' (Potsdam Device) and almost 10,000 weapons were made. By 1945, Germany was seeking a cheaper replacement for the
MP40 The MP 40 (''Maschinenpistole 40'') is a submachine gun chambered for the 9×19mm Parabellum cartridge. It was developed in Nazi Germany and used extensively by the Axis powers during World War II. Designed in 1938 by Heinrich Vollmer with in ...
submachine gun to issue to the ''
Volkssturm The (; "people's storm") was a levée en masse national militia established by Nazi Germany during the last months of World War II. It was not set up by the German Army, the ground component of the combined German ''Wehrmacht'' armed forces, ...
''. Mauser produced a modified Sten, named the
MP 3008 The 9×19mm MP 3008 (''Maschinenpistole 3008'' or "machine pistol 3008", also Volks-MP.3008 and Gerät Neumünster) was a German last ditch submachine gun manufactured towards the end of World War II in early 1945. Also known as the ''Volksmas ...
. The main difference was that the magazine attached below the weapon. Altogether, roughly 10,000 were produced in early 1945, just before the end of World War II. ; Australia: The Mark I
Austen submachine gun The Austen (from "Australian Sten") was a 9×19mm Australian submachine gun derived from the British Sten gun developed during the Second World War. In total 19,914 Austens were produced during the war by Diecasters Ltd of Melbourne and W. T. Ca ...
("Australian Sten") was an Australian design, derived from the Sten and manufactured by the
Lithgow Small Arms Factory The Lithgow Small Arms Factory, or Lithgow Arms, is an Australian small arms manufacturing factory located in the town of Lithgow, New South Wales. It was created by the Australian Government in 1912 to ease reliance on the British for the sup ...
. It externally resembled the Sten but had twin pistol grips and folding stock resembling those of the German
MP40 The MP 40 (''Maschinenpistole 40'') is a submachine gun chambered for the 9×19mm Parabellum cartridge. It was developed in Nazi Germany and used extensively by the Axis powers during World War II. Designed in 1938 by Heinrich Vollmer with in ...
.Smith, 1969 p198 Australian and NZ troops however preferred the
Owen gun The Owen gun, known officially as the Owen machine carbine, was an Australian submachine gun designed by Evelyn Owen in 1938. The Owen was the only entirely Australian-designed and constructed service submachine gun of World War II and was used ...
which was more reliable and robust in jungle warfare. A Mk 2 version was also produced which was of different appearance and which made more use of die-cast components. 20,000 Austens were made during the war and the Austen was replaced by the
F1 submachine gun The F1 is a 9x19mm Australian submachine gun manufactured by the Lithgow Small Arms Factory. First issued to Australian troops in July 1963, it replaced the Owen machine carbine. Like the Owen, the F1 had a distinctive top mounted magazine. I ...
in the 1960s. ; United States: A short-lived American invention developed in the 1980s, the Sputter Gun was designed to circumvent the law that defined a
machine gun A machine gun is a fully automatic, rifled autoloading firearm designed for sustained direct fire with rifle cartridges. Other automatic firearms such as automatic shotguns and automatic rifles (including assault rifles and battle rifles) a ...
as something that fired multiple rounds with one pull of the trigger. The Sputter Gun had no trigger, but fired continuously after loading and the pulling back of its bolt, firing until it ran out of ammunition. The gun was very short lived as the
ATF The Bureau of Alcohol, Tobacco, Firearms and Explosives (BATFE), commonly referred to as the ATF, is a domestic law enforcement agency within the United States Department of Justice. Its responsibilities include the investigation and preven ...
quickly reclassified it. During the 1970s-1980s, International Ordnance of San Antonio, Texas, United States released the machine pistol. It was intended as a more compact, simpler derivative of the British Sten gun to be used in urban guerrilla actions, to be manufactured cheaply and/or in less-than-well-equipped workshops and distributed to "friendly" undercover forces. Much like the
FP-45 Liberator The FP-45 Liberator is a pistol manufactured by the United States military during World War II for use by resistance forces in occupied territories. The ''Liberator'' was never issued to American or other Allied troops, and there are few docume ...
pistol of World War II, it could be discarded during an escape with no substantial loss for the force's arsenal. The MP2 is a blowback-operated weapon that fires from an open bolt with an extremely high rate of fire. ; Guatemala: The is a machine pistol of Guatemalan origin and manufactured by Cellini-Dunn IMG, Military Research Corp and Wildfire Munitions as the SM-90. It is blowback operated, firing from an open bolt and can use magazines from Ingram
MAC-10 The Military Armament Corporation Model 10, officially abbreviated as "M10" or "M-10", and more commonly known as the MAC-10, is a compact, blowback operated machine pistol/submachine gun that was developed by Gordon B. Ingram in 1964. It is ...
submachine guns inserted into a similar foregrip that can be rotated 45 and 90 degrees for left/right handed operators. The layout of the receiver is somewhat simpler than that of a Sten with its internal components light in weight enabling a very high rate of fire of 1200rpm. Its forward pistol grip can hold a spare magazine as well as handling the weapon when firing. ; Croatia: The Pleter submachine gun was created in 1991 when the breakup of
Yugoslavia Yugoslavia (; sh-Latn-Cyrl, separator=" / ", Jugoslavija, Југославија ; sl, Jugoslavija ; mk, Југославија ;; rup, Iugoslavia; hu, Jugoszlávia; rue, label=Pannonian Rusyn, Югославия, translit=Juhoslavija ...
in the midst of emerging war left the newly formed Republic of Croatia with small number of military firearms. Since the
embargo Economic sanctions are commercial and financial penalties applied by one or more countries against a targeted self-governing state, group, or individual. Economic sanctions are not necessarily imposed because of economic circumstances—they m ...
prevented the Croatian military from legally buying them on open market (so they were mostly obtained on the world black market, but with significantly higher price and sometimes of questionable quality), to fulfill the immediate need for arms, they tried to resort on quick and simple locally made designs. Despite having a vertical magazine well (designed to accept 32-round staggered-feed direct copy of
UZI The Uzi (; he, עוזי, Ūzi; officially cased as UZI) is a family of Israeli open-bolt, blowback-operated submachine guns and machine pistols first designed by Major Uziel "Uzi" Gal in the late 1940s, shortly after the establishment of the ...
magazine, rather than original single-feed Sten-type magazine), analogies with the Sten include a striking resemblance in the barrel assembly and in the bolt and recoil spring. In addition, this gun also fires from an open bolt, and is further simplified by removing fire mode selector or any safety. ; Canada: SMG International in Canada manufactured reproductions of the Sten in six variants. They made copies of the Sten's Mk 1*, Mk II and Mk III, a "New Zealand Sten" (a Mk II/III Sten hybrid, with sights and a fixed magazine housing similar to the Mk III), then branched out into "hypothetical" Sten-guns with a "Rotary Magazine Sten" (a Mk II Sten with a drum magazine attached below the weapon and wooden horizontal forward grip on the left side of the weapon) and the "FRT Gun" (a long barrel Sten with a wooden or Mk 1* type butt stock, a drum magazine attached below the weapon and sliding ramp rear sights). These last two being obviously not Sten reproductions, especially if they included a drum magazine. The "Rotary Magazine Sten" is a vertically fed Sten which uses a modified Sten bolt, which can use either PPSh drum magazines or stick magazines. The FRT gun is essentially a Suomi that uses a Sten trigger mechanism. All SaskSten guns fire from an open bolt.


Service

The Sten, especially the Mark II, tended to attract affection and loathing in equal measure. Its peculiar appearance when compared to other firearms of the era, combined with sometimes questionable reliability made it unpopular with some front-line troops. It gained nicknames such as "Plumber's Nightmare", "Plumber's Abortion", or "Stench Gun". The Sten's advantage was its ease of mass-production manufacture in a time of shortage during a major conflict. Made by a variety of manufacturers, often with subcontracted parts, some early Sten guns were made poorly and/or not to specification, and could malfunction in operation, sometimes in combat.Willbanks, James H., ''Machine Guns: An Illustrated History of Their Impact'', ABC-CLIO Press (2004), , , p. 91 The double-column, single-feed magazine copied from the German MP28 was never completely satisfactory, and hasty manufacturing processes often exacerbated the misfeed problems inherent in the design. A common statement heard from British forces at the time was that the Sten was made "by
Marks and Spencer Marks and Spencer Group plc (commonly abbreviated to M&S and colloquially known as Marks's or Marks & Sparks) is a major British multinational retailer with headquarters in Paddington, London that specialises in selling clothing, beauty, home ...
out of Woolworth."Shore, C. (Capt), ''With British Snipers to the Reich'', Paladin Press (1988), pp. 208-209 British and Commonwealth forces in the early years of the war often extensively test-fired their weapons in training to weed out bad examples; a last-minute issue of newly manufactured Stens prior to going into action was not always welcomed. The MK II and III Stens were regarded by many soldiers as very temperamental, and could accidentally discharge if dropped or even laid on the ground whilst the gun was cocked. Others would fire full-automatic when placed on 'single', or fire single shots when placed on 'automatic'. This was particularly true of early Stens using
bronze Bronze is an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (including aluminium, manganese, nickel, or zinc) and sometimes non-metals, such as phosphorus, or metalloids such ...
bolts, where the sear projection underneath the bolt could wear down more easily than ones made of
case-hardened Case-hardening or surface hardening is the process of hardening the surface of a metal object while allowing the metal deeper underneath to remain soft, thus forming a thin layer of harder metal at the surface. For iron or steel with low carbon ...
steel. Stens could jam at inopportune moments. One of the more notable instances of this was the assassination of SS
Obergruppenführer ' (, "senior group leader") was a paramilitary rank in Nazi Germany that was first created in 1932 as a rank of the ''Sturmabteilung'' (SA) and adopted by the ''Schutzstaffel'' (SS) one year later. Until April 1942, it was the highest commissio ...
Reinhard Heydrich Reinhard Tristan Eugen Heydrich ( ; ; 7 March 1904 – 4 June 1942) was a high-ranking German SS and police official during the Nazi era and a principal architect of the Holocaust. He was chief of the Reich Security Main Office (inclu ...
on 27 May 1942, when Czechoslovak Warrant Officer
Jozef Gabčík Jozef Gabčík (; 8 April 1912 – 18 June 1942) was a Slovak soldier in the Czechoslovak Army involved in the Operation Anthropoid, the assassination of acting ''Reichsprotektor'' (Imperial-Protector) of Protectorate of Bohemia and Moravia, ...
wanted to fire his Sten point blank at Heydrich, only to have it misfire. His comrade
Jan Kubiš Jan Kubiš (24 June 1913 – 18 June 1942) was a Czech soldier, one of a team of Czechoslovak British-trained paratroopers sent to eliminate acting Reichsprotektor (Realm-Protector) of Bohemia and Moravia, SS-Obergruppenführer Reinhard Heydri ...
then hastily tossed a grenade, which mortally wounded Heydrich. There are other accounts of the Sten's unreliability, some of them true, some exaggerated and some
apocryphal Apocrypha are works, usually written, of unknown authorship or of doubtful origin. The word ''apocryphal'' (ἀπόκρυφος) was first applied to writings which were kept secret because they were the vehicles of esoteric knowledge considered ...
. France manufactured (well-made) Sten copies postwar into the early 1950s, evidently believing in the basic reliability and durability of the design. A well-maintained (and properly functioning) Sten gun was a devastating close-range weapon for sections previously armed only with bolt-action rifles. In addition to regular British and Commonwealth military service, Stens were air-dropped in quantity to resistance fighters and partisans throughout occupied Europe. Due to their slim profile and ease of disassembly/reassembly, they were good for concealment and
guerrilla warfare Guerrilla warfare is a form of irregular warfare in which small groups of combatants, such as paramilitary personnel, armed civilians, or Irregular military, irregulars, use military tactics including ambushes, sabotage, Raid (military), raids ...
. Wrapping the barrel in wet rags would delay undesirable overheating of the barrel.Dear, I. ''Sabotage and Subversion: The SOE and OSS at War'', Arms and Armour (1996) pp. 137–155 Guerrilla fighters in Europe became adept at repairing, modifying and eventually scratch-building clones of the Sten (over 2,000 Stens and about 500 of the similar Błyskawica SMGs were manufactured in occupied Poland). Canadian infantry battalions in northwest Europe retained spare Sten guns for special missions and the Canadian Army reported a surplus of the weapons in 1944. The Sten saw use even after the economic crunch of World War II, replacing the Royal Navy's Lanchester submachine guns into the 1960s, and was used in the
Korean War , date = {{Ubl, 25 June 1950 – 27 July 1953 (''de facto'')({{Age in years, months, weeks and days, month1=6, day1=25, year1=1950, month2=7, day2=27, year2=1953), 25 June 1950 – present (''de jure'')({{Age in years, months, weeks a ...
, including specialist versions for British Commandos. It was slowly withdrawn from British Army service in the 1960s and replaced by the
Sterling SMG The Sterling submachine gun is a British submachine gun (SMG). It was tested with the British Army in 1944–1945 as a replacement for the Sten but it did not start to replace it until 1953. A successful and reliable design, it remained as stand ...
; Canada also phased out the Sten, replacing it with the
C1 SMG The Sterling submachine gun is a British submachine gun (SMG). It was tested with the British Army in 1944–1945 as a replacement for the Sten but it did not start to replace it until 1953. A successful and reliable design, it remained as stan ...
. The Sten was one of the few weapons that the
State of Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...
could produce domestically during the
1948 Arab–Israeli War The 1948 (or First) Arab–Israeli War was the second and final stage of the 1948 Palestine war. It formally began following the end of the British Mandate for Palestine at midnight on 14 May 1948; the Israeli Declaration of Independence had ...
. Even before the declaration of the State of Israel, the
Yishuv Yishuv ( he, ישוב, literally "settlement"), Ha-Yishuv ( he, הישוב, ''the Yishuv''), or Ha-Yishuv Ha-Ivri ( he, הישוב העברי, ''the Hebrew Yishuv''), is the body of Jewish residents in the Land of Israel (corresponding to the s ...
had been producing Stens for the
Haganah Haganah ( he, הַהֲגָנָה, lit. ''The Defence'') was the main Zionist paramilitary organization of the Jewish population ("Yishuv") in Mandatory Palestine between 1920 and its disestablishment in 1948, when it became the core of the ...
; after the declaration, Israel continued making Stens for
IDF IDF or idf may refer to: Defence forces * Irish Defence Forces * Israel Defense Forces *Iceland Defense Force, of the US Armed Forces, 1951-2006 * Indian Defence Force, a part-time force, 1917 Organizations * Israeli Diving Federation * Interac ...
use. The opposing side also used (mostly British-made) Stens, particularly the irregular and semi-regular
Arab Liberation Army The Arab Liberation Army (ALA; ar, جيش الإنقاذ العربي ''Jaysh al-Inqadh al-Arabi''), also translated as Arab Salvation Army, was an army of volunteers from Arab countries led by Fawzi al-Qawuqji. It fought on the Arab side in th ...
. In the 1950s, "L numbering" came into use in the
British Army The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. , the British Army comprises 79,380 regular full-time personnel, 4,090 Gurk ...
for weapons—Stens were then known as L50 (Mk II), L51 (Mk III) and L52 (Mk V). One of the last times the Sten was used in combat during British service was with the RUC during the IRA border campaign of 1956–1962. In foreign service, the Sten was used in combat at least as recently as the
Indo-Pakistani War of 1971 The Indo-Pakistani War of 1971 was a military confrontation between India and Pakistan that occurred during the Bangladesh Liberation War in East Pakistan from 3 December 1971 until the Pakistani capitulation in Dhaka on 16 Decem ...
. In 1971, various marks of Stens were used by guerrilla fighters during the
Bangladesh Liberation War The Bangladesh Liberation War ( bn, মুক্তিযুদ্ধ, , also known as the Bangladesh War of Independence, or simply the Liberation War in Bangladesh) was a revolution and War, armed conflict sparked by the rise of the Benga ...
. A number of suppressed Stens were in limited use by the US
Special Forces Special forces and special operations forces (SOF) are military units trained to conduct special operations. NATO has defined special operations as "military activities conducted by specially designated, organized, selected, trained and equip ...
during the
Vietnam War The Vietnam War (also known by #Names, other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vie ...
, including c. 1971, by the
United States Army Rangers United States Army Rangers, according to the US Army's definition, are personnel, past or present, in any unit that has the official designation "Ranger". The term is commonly used to include graduates of the US Army Ranger School, even if t ...
. In 1984, Indian prime minister
Indira Gandhi Indira Priyadarshini Gandhi (; Given name, ''née'' Nehru; 19 November 1917 – 31 October 1984) was an Indian politician and a central figure of the Indian National Congress. She was elected as third prime minister of India in 1966 ...
was
assassinated Assassination is the murder of a prominent or important person, such as a head of state, head of government, politician, world leader, member of a royal family or CEO. The murder of a celebrity, activist, or artist, though they may not have a ...
by two of her bodyguards, one of whom fired the entire magazine (30 rounds) of his Sten at point-blank range, of which 27 hit her. In the
Second Sino-Japanese War The Second Sino-Japanese War (1937–1945) or War of Resistance (Chinese term) was a military conflict that was primarily waged between the Republic of China and the Empire of Japan. The war made up the Chinese theater of the wider Pacific Th ...
and the
Chinese Civil War The Chinese Civil War was fought between the Kuomintang-led government of the Republic of China and forces of the Chinese Communist Party, continuing intermittently since 1 August 1927 until 7 December 1949 with a Communist victory on m ...
, both nationalists and communist Chinese forces used the Sten. Some Stens were converted by the communists to 7.62×25mm by using the magazine housing from a PPS to accept curved PPS magazines. British, Canadian, and Chinese Stens were seen in the hands of the communists during the Korean and Vietnam Wars. The
Finnish Army The Finnish Army (Finnish: ''Maavoimat'', Swedish: ''Armén'') is the land forces branch of the Finnish Defence Forces. The Finnish Army is divided into six branches: the infantry (which includes armoured units), field artillery, anti-aircraft ...
acquired moderate numbers of Stens in the late 1950s, mainly Mk. III versions. Refurbishment at the
Kuopio Kuopio (, ) is a Finnish city and municipality located in the region of Northern Savonia. It has a population of , which makes it the most populous municipality in Finland. Along with Joensuu, Kuopio is one of the major urban, economic, and cult ...
Arsenal included bluing of the arms. Stens in Finnish service saw limited usage by conscripts (notably
combat swimmer A frogman is someone who is trained in scuba diving or swimming underwater in a tactical capacity that includes military, and in some European countries, police work. Such personnel are also known by the more formal names of combat diver, comb ...
s) and were mostly stockpiled for use in a future mobilization. During the Zapatista movement in 1994, some Zapatista soldiers were armed with Sten guns.


Users

* : Used by the Albanian National Liberation Army during World War II. The weapons were supplied by the British SOE. *
FNLA The National Front for the Liberation of Angola ( pt, Frente Nacional de Libertação de Angola; abbreviated FNLA) is a political party and former militant organisation that fought for Angolan independence from Portugal in the war of independen ...
* : ''Modelo C.4.''. * : Locally produced during World War II. * : Extensively used during
1971 war The Indo-Pakistani War of 1971 was a military confrontation between India and Pakistan that occurred during the Bangladesh Liberation War in East Pakistan from 3 December 1971 until the Pakistani capitulation in Dhaka on 16 Decemb ...
. * * * : Locally produced during World War II. * : Central African Republic Police had 10 Stens in 1963 * *
Republic of the Congo (Léopoldville) The Republic of the Congo (french: République du Congo) was a sovereign state in Central Africa, created with the independence of the Belgian Congo in 1960. From 1960 to 1966, the country was also known as Congo-Léopoldville (after its cap ...
** * :
Fidel Castro Fidel Alejandro Castro Ruz (; ; 13 August 1926 – 25 November 2016) was a Cuban revolutionary and politician who was the leader of Cuba from 1959 to 2008, serving as the prime minister of Cuba from 1959 to 1976 and president from 1976 to 200 ...
praised the Canadian Sten gun in his 1958 interview with
Erik Durschmied Erik Durschmied (born 25 December 1930) is a cinematographer, producer, director and also an author, military history professor and a former war correspondent for BBC, CBS. ''Newsweek'' called him a "supremely gifted reporter who has changed the m ...
* * : Most used by communist forces had their Stens converted to 7.62x25 caliber. * * : Used by Czechoslovak troops for
Operation Anthropoid On 27 May 1942 in Prague, Reinhard Heydrichthe commander of the Reich Security Main Office (RSHA), acting governor of the Protectorate of Bohemia and Moravia, and a principal architect of the Holocaustwas attacked and wounded in an assassinatio ...
, the assassination of
Reinhard Heydrich Reinhard Tristan Eugen Heydrich ( ; ; 7 March 1904 – 4 June 1942) was a high-ranking German SS and police official during the Nazi era and a principal architect of the Holocaust. He was chief of the Reich Security Main Office (inclu ...
. The gun jammed and failed to fire. * : Used by the Danish resistance movements like
BOPA BOPA ( da, Borgerlige Partisaner, Civil Partisans) was a group of the Danish resistance movement; it was affiliated with the communists and developed after the occupation of Denmark by Nazi Germany during the Second World War. In 1942, the Commu ...
and
Holger Danske Holger may refer to: People * Holger (given name), includes name origin, plus people with the name * Hilde Holger, stage name of dancer, choreographer and dance teacher Hilde Boman-Behram (née Hilde Sofer, 1905–2001) Fictional characters * Holg ...
. Locally produced. * * : 76 115 MK 2s and 3s bought in 1957–1958; used until replaced by assault rifles. * : Used during World War II by the
Free French Free France (french: France Libre) was a political entity that claimed to be the legitimate government of France following the dissolution of the Third Republic. Led by French general , Free France was established as a government-in-exile ...
forces, the
French Resistance The French Resistance (french: La Résistance) was a collection of organisations that fought the German occupation of France during World War II, Nazi occupation of France and the Collaborationism, collaborationist Vichy France, Vichy régim ...
and some captured from the Resistance were used by the pro-German
Milice française The ''Milice française'' (French Militia), generally called ''la Milice'' (literally ''the militia'') (), was a political paramilitary organization created on 30 January 1943 by the Vichy regime (with German aid) to help fight against the Fr ...
. Still used after World War II. * * * * * : Used in the
1947–1949 Palestine war The 1948 Palestine war was fought in the territory of what had been, at the start of the war, British-ruled Mandatory Palestine. It is known in Israel as the War of Independence ( he, מלחמת העצמאות, ''Milkhemet Ha'Atzma'ut'') and ...
and the
Suez Crisis The Suez Crisis, or the Second Arab–Israeli war, also called the Tripartite Aggression ( ar, العدوان الثلاثي, Al-ʿUdwān aṯ-Ṯulāṯiyy) in the Arab world and the Sinai War in Israel,Also known as the Suez War or 1956 Wa ...
. * Sten guns were supplied to the Italian resistance movement by the SOE, along with the United Defense M42 submachine gun supplied by the OSS during the Italian Campaign. These guns, along with the Berretta M38A, were used by the Italian partisans until the end of World War II. * * :
Arab Legion The Arab Legion () was the police force, then regular army of the Emirate of Transjordan, a British protectorate, in the early part of the 20th century, and then of independent Jordan, with a final Arabization of its command taking place in 195 ...
* : Used by the regular police paramilitary GSU, army paratroopers; replaced by G3A3/4, M4 and HK416. *
Kingdom of Laos The Kingdom of Laos was a landlocked country in Southeast Asia at the heart of the Indochinese Peninsula. It was bordered by Burma and China to the northwest, North Vietnam to the east, Cambodia to the southeast, and Thailand to the west and ...
: Used by the
Royal Lao Army The Royal Lao Army (french: Armée royale du Laos – ARL), also designated by its anglicized title RLA, was the Land Component of the Royal Lao Armed Forces (FAR), the official military of the Kingdom of Laos during the North Vietnamese invasi ...
and the
CIA The Central Intelligence Agency (CIA ), known informally as the Agency and historically as the Company, is a civilian intelligence agency, foreign intelligence service of the federal government of the United States, officially tasked with gat ...
-sponsored irregular Special Guerrilla Groups during the
Laotian Civil War The Laotian Civil War (1959–1975) was a civil war in Laos which was waged between the Communist Pathet Lao and the Royal Lao Government from 23 May 1959 to 2 December 1975. It is associated with the Cambodian Civil War and the Vietnam War ...
. * * * : Used by
Royal Malaysia Police The Royal Malaysia Police (often abbreviated RMP) ( ms, Polis Diraja Malaysia (PDRM)), is a (primarily) uniformed national and federal police force in Malaysia. The force is a centralised organisation. Its headquarters are located at Bukit Aman ...
,
Malaysian Army The Malaysian Army ( ms, Tentera Darat Malaysia; Jawi: تنترا دارت مليسيا) is the land component of the Malaysian Armed Forces. Steeped in British Army traditions, the Malaysian Army does not carry the title ‘royal’ () as do th ...
,
Royal Malaysian Navy The Royal Malaysian Navy (RMN, ms, Tentera Laut Diraja Malaysia; TLDM; Jawi: ) is the naval arm of the Malaysian Armed Forces. RMN is the main agency responsible for the country's maritime surveillance and defense operations. RMN's area of o ...
and
Malaysian Prison Department The Malaysian Prison Department ( ms, Jabatan Penjara Malaysia), is a department controlled by the Malaysian Minister of Home Affairs responsible for prisons where offenders sentenced by the courts are held. These jails also act as detention a ...
in 1950s to 1970s. * * : Retired. * : Still in service in 2006. * Bloomfield & Leiss, 1967, p. 79 * : Used some captured Stens during World War II, under the designations ''MP 748 (e)'' for the Mark I to ''MP 751 (e)'' for the Mark V. From late 1944, they produced an almost identical copy for home defence: the
MP 3008 The 9×19mm MP 3008 (''Maschinenpistole 3008'' or "machine pistol 3008", also Volks-MP.3008 and Gerät Neumünster) was a German last ditch submachine gun manufactured towards the end of World War II in early 1945. Also known as the ''Volksmas ...
. * * * : Used by the Norwegian resistance from 1940–1945. The guns came to the resistance groups by air (supply drops). Used by the Army after the war. * * : Used by the Recognized Guerrilla Units during World War II. * : Used by
Polish Armed Forces in the West The Polish Armed Forces in the West () refers to the Polish military formations formed to fight alongside the Western Allies against Nazi Germany and its allies during World War II. Polish forces were also raised within Soviet territories; thes ...
and main resistance army in occupied Poland, the
Armia Krajowa The Home Army ( pl, Armia Krajowa, abbreviated AK; ) was the dominant resistance movement in German-occupied Poland during World War II. The Home Army was formed in February 1942 from the earlier Związek Walki Zbrojnej (Armed Resistance) esta ...
(Home Army). The majority of the resistance's Stens were dropped to Poland in SOE supply drops, but some of the Polish Stens were produced in the occupied country. Polish engineers also designed their own Sten version, the
Błyskawica submachine gun The Błyskawica (Polish: 'lightning') was a submachine gunhttp://www.cruffler.com/trivia-October00.html. produced by the Armia Krajowa, or Home Army, a Polish resistance movement fighting the Germans in occupied Poland. Together with a Polis ...
. After the war, it was used by many anti-communist partisan groups (
cursed soldiers The "cursed soldiers" (also known as "doomed soldiers", "accursed soldiers" or "damned soldiers"; pl, żołnierze wyklęci) or "indomitable soldiers" ( pl, żołnierze niezłomni) is a term applied to a variety of anti-Soviet and anti-communist ...
). * : Known as ''m/43''. * * * ** : Used by
SWAPOL The South West African Police (SWAPOL) was the national police force of South West Africa (now Namibia), responsible for law enforcement and public safety in South West Africa when the territory was administered by South Africa. It was organised ...
during the
South African Border War The South African Border War, also known as the Namibian War of Independence, and sometimes denoted in South Africa as the Angolan Bush War, was a largely asymmetric conflict that occurred in Namibia (then South West Africa), Zambia, and Angol ...
. * * * : The
Tibetan Army The Tibetan Army () was the military force of Tibet after its ''de facto'' independence in 1912 until the 1950s. As a ground army modernised with the assistance of British training and equipment, it served as the ''de facto'' armed forces of th ...
purchased 168 guns in 1950. * * * : Suppressed Stens used during the Vietnam War by American special forces. * :
Việt Minh The Việt Minh (; abbreviated from , chữ Nôm and Hán tự: ; french: Ligue pour l'indépendance du Viêt Nam, ) was a national independence coalition formed at Pác Bó by Hồ Chí Minh on 19 May 1941. Also known as the Việt Minh Fro ...
and
Viet Cong , , war = the Vietnam War , image = FNL Flag.svg , caption = The flag of the Viet Cong, adopted in 1960, is a variation on the flag of North Vietnam. Sometimes the lower stripe was green. , active ...
* : Used by the
Yugoslav Partisans The Yugoslav Partisans,Serbo-Croatian, Macedonian, Slovene: , or the National Liberation Army, sh-Latn-Cyrl, Narodnooslobodilačka vojska (NOV), Народноослободилачка војска (НОВ); mk, Народноослобод ...
and
Chetniks The Chetniks ( sh-Cyrl-Latn, Четници, Četnici, ; sl, Četniki), formally the Chetnik Detachments of the Yugoslav Army, and also the Yugoslav Army in the Homeland and the Ravna Gora Movement, was a Yugoslav royalist and Serbian nationa ...
. Also used after the war.


Non-state groups

* The
Provisional IRA The Irish Republican Army (IRA; ), also known as the Provisional Irish Republican Army, and informally as the Provos, was an Irish republicanism, Irish republican paramilitary organisation that sought to end British rule in Northern Ireland, fa ...
and
Official IRA The Official Irish Republican Army or Official IRA (OIRA; ) was an Irish republican paramilitary group whose goal was to remove Northern Ireland from the United Kingdom and create a "workers' republic" encompassing all of Ireland. It emerged ...
* The
Ulster Volunteer Force The Ulster Volunteer Force (UVF) is an Ulster loyalist paramilitary group. Formed in 1965, it first emerged in 1966. Its first leader was Gusty Spence, a former British Army soldier from Northern Ireland. The group undertook an armed campaig ...
and
Ulster Freedom Fighters The Ulster Defence Association (UDA) is an Ulster loyalist paramilitary group in Northern Ireland. It was formed in September 1971 as an umbrella group for various loyalist groups and undertook an armed campaign of almost 24 years as one of t ...
*
Balcombe Street Gang The Balcombe Street Gang was a Provisional Irish Republican Army (IRA) active service unit (ASU) (also known as the Balcombe Street Four or the Balcombe Street Unit) who carried out a bombing campaign in southern England in the mid-1970s. The ...
*
The Angry Brigade The Angry Brigade was a far-left British terrorist group responsible for a series of bomb attacks in England between 1970 and 1972. Using small bombs, they targeted banks, embassies, a BBC Outside Broadcast vehicle, and the homes of Conservativ ...
* Some were supplied to the
Bulgarian Communist Party The Bulgarian Communist Party (BCP; bg, Българска Комунистическа Партия (БКП), Balgarska komunisticheska partiya (BKP)) was the founding and ruling party of the People's Republic of Bulgaria from 1946 until 198 ...
during WWII


Notes


References

* * *


External links


"Sten Gun to be forerunner of invasion"
September 1943 detailed article in ''
Popular Science ''Popular Science'' (also known as ''PopSci'') is an American digital magazine carrying popular science content, which refers to articles for the general reader on science and technology subjects. ''Popular Science'' has won over 58 awards, incl ...
''
Complete machinist's plans to manufacture a Sten Mk II


{{Authority control 9mm Parabellum submachine guns Insurgency weapons Simple blowback firearms Submachine guns of the United Kingdom Weapons and ammunition introduced in 1941 World War II infantry weapons of Australia World War II infantry weapons of China World War II infantry weapons of the United Kingdom World War II submachine guns