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Pancor Jackhammer
The Pancor Corporation Jackhammer is a 12-gauge, blow-forward gas-operated bullpup automatic shotgun designed in 1984 and patented in 1987. Only three working prototypes of the Jackhammer were built. Nonetheless, its distinctive aesthetics and futuristic design have made it a prop in action films, television programs, and video games. Development The Jackhammer was designed by John A. Anderson, who formed the company Pancor Industries in New Mexico. Anderson designed it based on his experiences using pump action shotguns in the Korean War and believed he could create a better shotgun, finding reloading pump action shotguns awkward and time consuming. Reportedly, several foreign governments expressed interest in the design and even ordered initial production units once ready for delivery. However, export of the design was held up for production due to United States Department of Defense testing, though the design was eventually rejected. Testing was done by HP White Labs in destr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drum Magazine
A drum magazine is a type of high-capacity magazine for firearms. Cylindrical in shape (similar to a drum), drum magazines store rounds in a spiral around the center of the magazine, facing the direction of the barrel. Drum magazines are contrasted with more common box-type magazines, which have a lower capacity and store rounds flat. The capacity of drum magazines varies, but is generally between 50 and 100 rounds. History and usage 1800s The first drum magazine was patented in 1853 by Charles N. Tyler. 1900s Pistols and rifles A drum magazine was built for the Luger (Pistole 1908) pistol; although the Luger usually used an 8-cartridge box magazine, the optional 32-cartridge ''Schneckenmagazine'' ("snail magazine") was also sometimes used. Moubray G. Farquhar and Arthur H. Hill applied for a British patent for "A New or Improved Cartridge Magazine for Small Arms and Machine Guns" in 1915 for their Farquhar–Hill rifle, and it was accepted in 1919. Submachine guns In 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heckler & Koch MP5
The Heckler & Koch MP5 (german: Maschinenpistole 5) is a 9x19mm Parabellum submachine gun, developed in the 1960s by a team of engineers from the German small arms manufacturer Heckler & Koch. There are over 100 variants and clones of the MP5, including some semi-automatic versions. The MP5 is one of the most widely used submachine guns in the world,Hogg, Ian (2002). ''Jane's Guns Recognition Guide''. Jane's Information Group. . having been adopted by over forty nations and numerous military, law enforcement, intelligence, and security organizations. In 1999, Heckler & Koch developed the UMP, the MP5's successor. Despite its higher cost, the MP5 remained the more successful of the two options. History Heckler & Koch, encouraged by the success of the G3 automatic rifle, developed a family of small arms consisting of four types of firearms all based on a common G3 design layout and operating principle. The first type was chambered for 7.62×51mm NATO, the second for the 7.6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atchisson AA-12
The AA-12 (Auto Assault-12), originally designed and known as the Atchisson Assault Shotgun, is an automatic combat shotgun developed in 1972 by Maxwell Atchisson (however, the original development by Atchisson seems to have produced only a few guns at prototype-level, with the development that ultimately lead to the gun entering the market being done later by Military Police Systems, Inc.). The most prominent feature is reduced recoil. The current 2005 version has been developed over 18 years since the patent was sold to Military Police Systems, Inc. The original design was the basis of several later weapons, including the USAS-12 combat shotgun. The shotgun fires in fully automatic mode only. However, the relatively low cyclic rate of fire of around 300 rounds per minute enables the shooter to fire semi-automatically de facto with brief trigger pulls. It is fed from either an 8-shell box magazine, or a 20- or 32-shell drum magazine. History In 1987, Max Atchisson sold the rights ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armsel Striker
The Armsel Striker, also known as the Sentinel Arms Co Striker-12, Protecta, Protecta Bulldog and SWD Street Sweeper is a 12-gauge shotgun with a revolving cylinder that was designed for riot control and combat. History The Armsel Striker was designed by Hilton R. Walker, a Zimbabwean citizen, in 1981. Walker subsequently emigrated to South Africa, bringing with him the design for the Striker shotgun. His shotgun became a success and was exported to various parts of the world, despite some drawbacks. The rotary cylinder-type magazine was bulky, had a long reload time, and the basic action was not without certain flaws. Walker redesigned his weapon in 1989, removing the cylinder rotation mechanism, and adding an auto cartridge ejection system. The new shotgun was named the ''Protecta''. A copy of the Striker was made by the US gunmaker Cobray and marketed as the SWD Street Sweeper from 1989 through 1993. Design and features The weapon's action is similar to a revolver's, usin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jane's Information Group
Jane's Information Group, now styled Janes, is a global open-source intelligence company specialising in military, national security, aerospace and transport topics, whose name derives from British author Fred T. Jane. History Jane's Information Group was founded in 1898 by Fred T. Jane, who had begun sketching ships as an enthusiast naval artist while living in Portsmouth. This gradually developed into an encyclopedic knowledge, culminating in the publishing of ''All the World's Fighting Ships'' (1898). The company then gradually branched out into other areas of military expertise. The books and trade magazines published by the company are often considered the ''de facto'' public source of information on warfare and transportation systems. Based in Greater London for most of its existence, the group was owned by the Thomson Corporation, The Woodbridge Company, then IHS Markit, before being acquired by Montagu Private Equity in 2019. Description The company name is officially ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forgotten Weapons
Forgotten Weapons is a website and channel appearing on YouTube, Utreon and Full30, created and presented by Ian McCollum, that covers the history of antique, obscure, and historically important firearms. Videos Forgotten Weapons frequently features unusual, rare, odd, experimental, or one-off firearms, such as the paratroop versions of the Empire of Japan's Arisaka Type 99 rifle featuring a folding stock attached to a cabinet hinge. McCollum covers the history of such firearms in detail, and often explains how important certain firearms were to the development of weapon technologies and the history of warfare. He also usually explains the functioning and parts of the gun by dissassembling it. McCollum often borrows the firearms from auction houses, most commonly the Rock Island Auction and Morphy Auctions. He has also written books and articles for ''Popular Mechanics'' on the topic of firearms. Platforms McCollum avoids political topics in favor of exclusively covering tech ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Mine
A land mine is an explosive device concealed under or on the ground and designed to destroy or disable enemy targets, ranging from combatants to vehicles and tanks, as they pass over or near it. Such a device is typically detonated automatically by way of pressure when a target steps on it or drives over it, although other detonation mechanisms are also sometimes used. A land mine may cause damage by direct blast effect, by fragments that are thrown by the blast, or by both. Landmines are typically laid throughout an area, creating a ''minefield'' which is dangerous to cross. The use of land mines is controversial because of their potential as indiscriminate weapons. They can remain dangerous many years after a conflict has ended, harming civilians and the economy. Seventy-eight countries are contaminated with land mines and 15,000–20,000 people are killed every year while many more are injured. Approximately 80% of land mine casualties are civilians, with children as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nagant M1895
The Nagant M1895 Revolver is a seven-shot, gas-seal revolver designed and produced by Belgian industrialist Léon Nagant for the Russian Empire. The Nagant M1895 was chambered for a proprietary cartridge, 7.62×38mmR, and featured an unusual "gas-seal" system, in which the cylinder moved forward when the gun was cocked, to close the gap between the cylinder and the barrel, providing a boost to the muzzle velocity of the bullet and allowing the weapon to be suppressed (an unusual characteristic for a revolver). In fact, a 38mm long shell covers the whole bullet for this very purpose as well. This way, early Nagant users would avoid dealing with gases of black powder. Its design would inspire the Pieper M1893 carbine and Steyr 1893 revolver. Russian M1895 Léon Nagant and his brother Émile were well known in the Russian Tsar's court and military administration because of the part they had played in the design of the Russian service rifle, the Mosin–Nagant Model 1891. The Nag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breech-loading Weapon
A breechloader is a firearm in which the user loads the ammunition (cartridge or shell) via the rear (breech) end of its barrel, as opposed to a muzzleloader, which loads ammunition via the front ( muzzle). Modern firearms are generally breech-loading – except for replicas of vintage weapons. Early firearms before the mid-19th century were almost entirely muzzle-loading. Mortars and the Russian GP-25 grenade launcher are the only muzzleloaders remaining in frequent modern usage. However, referring to a weapon specifically as breech loading is mostly limited to single-shot or otherwise non-repeating firearms, such as double-barreled shotguns. Breech-loading provides the advantage of reduced reloading time, because it is far quicker to load the projectile and propellant into the chamber of a gun/cannon than to reach all the way over to the front end to load ammunition and then push them back down a long tube – especially when the projectile fits tightly and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recoil Operation
Recoil operation is an operating mechanism used to implement locked breech, autoloading firearms. Recoil operated firearms use the energy of recoil to cycle the action, as opposed to gas operation or blowback operation using the pressure of the propellant gas. The earliest mention of recoil used to assist the loading of firearms is sometimes claimed to be in 1663 when an Englishman called Palmer proposed to employ either it or gases tapped along a barrel to do so. However no one has been able to verify this claim in recent times, although there is another automatic gun that dates from the same year, but its type and method of operation are unknown. Recoil-operation, if it was invented in 1663, would then lay dormant until the 19th century, when a number of inventors started to patent designs featuring recoil operation; this was due to the fact that the integrated disposable cartridge (both bullet and propellant in one easily interchangeable unit) made these designs viable. The ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Webley–Fosbery Automatic Revolver
The Webley–Fosbery Self-Cocking Automatic Revolver is a recoil-operated automatic revolver designed by Lieutenant Colonel George Vincent Fosbery VC and produced by the Webley & Scott company from 1901 to 1924. The revolver is easily recognisable by the zig-zag grooves on the cylinder. History Semi-automatic pistols were just beginning to appear when Colonel Fosbery (1832–1907) devised a revolver that cocked the hammer and rotated the cylinder by sliding the action, cylinder and barrel assembly back on the frame. The prototype was a modified Colt Single Action Army revolver. Fosbery patented his invention 16 August 1895 and further improvements were patented in June and October 1896. Fosbery took his design to P. Webley & Son of Birmingham. P. Webley & Son, which merged with W.C. Scott & Sons and Richard Ellis & Son in 1897 to form the Webley & Scott Revolver and Arms Co., was the primary manufacturer of service pistols for the British Army as well as producing firearms for c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyethylene Terephthalate
Polyethylene terephthalate (or poly(ethylene terephthalate), PET, PETE, or the obsolete PETP or PET-P), is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, containers for liquids and foods, and thermoforming for manufacturing, and in combination with glass fibre for engineering resins. In 2016, annual production of PET was 56 million tons. The biggest application is in fibres (in excess of 60%), with bottle production accounting for about 30% of global demand. In the context of textile applications, PET is referred to by its common name, polyester, whereas the acronym ''PET'' is generally used in relation to packaging. Polyester makes up about 18% of world polymer production and is the fourth-most-produced polymer after polyethylene (PE), polypropylene (PP) and polyvinyl chloride (PVC). PET consists of repeating (C10H8O4) units. PET is commonly recycled, and has the digit 1 (♳) as its resin identification code (RIC). T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
