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Bipod
A bipod is a V-shaped portable attachment that helps support and steady a device, usually a weapon such as a long gun or a mortar. The term comes from the Latin prefix and Greek root , meaning "two" and "foot" respectively. Bipods are designed to support the weight of the weapon's front portion and barrel, and provide significant stability against unwanted side-to-side movements (i.e. canting) while allowing free movements pivoting around the transverse axis ( pitching). Most modern bipods have foldable and/or telescoping legs, and allow some limited movements around the vertical axis (panning) and even the longitudinal axis ( tilting). A bipod by itself, with only two supporting legs, is not completely stable and needs to be reinforced by at least one more point of support to be steady, especially against the horizontal shearing force from recoils. This third point of support is typically the buttstock that is firmly pushed/braced against the shooter's body, but can a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weapon Mount
A weapon mount is an assembly or mechanism used to hold a weapon (typically a gun) onto a platform in order for it to function at maximum capacity. Weapon mounts can be broken down into two categories: static mounts and non-static mounts. Static mount A static mount is a non-portable weapon support component either mounted directly to the ground, on a fortification, or as part of a vehicle. Turret A gun turret protects the crew or mechanism of a weapon and at the same time lets the weapon be aimed and fired in many directions. A turret is a rotating weapon platform, strictly one that crosses the armour of whatever it is mounted on with a structure called a barbette (on ships) or basket (on tanks) and has a protective structure on top (gunhouse). If it has no gunhouse it is a barbette, if it has no barbette (i.e., it is mounted to the outside of the vehicle's armour) it is an installation. Turrets are typically used to mount machine guns, autocannons or large- calibre guns. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monopod
A monopod, also called a unipod, is a single staff or pole used to help support cameras, binoculars, rifles or other precision instruments in the field. Camera and imaging use The monopod allows a still camera to be held steadier, allowing the photographer to take sharp pictures at slower shutter speeds, and/or with longer focal length lenses. In the case of video, it reduces camera shake, and therefore most of the resulting small random movements. Monopods are easier to transport and quicker to set up than conventional tripods, making them preferable for on-the-go (OTG) photography. An OTG photographer is not able to carry a heavy, bulky tripod around, and when they see a potential shot, there is no time to bother with setting up a complicated tripod. A simple monopod is easy to carry, easy to set up, and enables the photographer to take advantage of the situation they are presented with, all while providing camera support to capture a clear, sharp image. Examples of situa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roll (flight)
An aircraft in flight is free to rotate in three dimensions: '' yaw'', nose left or right about an axis running up and down; ''pitch'', nose up or down about an axis running from wing to wing; and ''roll'', rotation about an axis running from nose to tail. The axes are alternatively designated as ''vertical'', ''lateral'' (or ''transverse''), and ''longitudinal'' respectively. These axes move with the vehicle and rotate relative to the Earth along with the craft. These definitions were analogously applied to spacecraft when the first crewed spacecraft were designed in the late 1950s. These rotations are produced by torques (or moments) about the principal axes. On an aircraft, these are intentionally produced by means of moving control surfaces, which vary the distribution of the net aerodynamic force about the vehicle's center of gravity. Elevators (moving flaps on the horizontal tail) produce pitch, a rudder on the vertical tail produces yaw, and ailerons (flaps on the wings t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Frontier
The American frontier, also known as the Old West, and popularly known as the Wild West, encompasses the Geography of the United States, geography, History of the United States, history, Folklore of the United States, folklore, and Culture of the United States, culture associated with the forward wave of United States territorial acquisitions, American expansion in mainland North America that began with European colonization of the Americas, European colonial settlements in the early 17th century and ended with the admission of the last few contiguous western territories as states in 1912. This era of massive migration and settlement was particularly encouraged by President Thomas Jefferson following the Louisiana Purchase, giving rise to the Expansionism, expansionist attitude known as "manifest destiny" and historians' "Frontier Thesis". The legends, historical events and folklore of the American frontier, known as the frontier myth, have embedded themselves into United S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
12th Century
The 12th century is the period from 1101 to 1200 in accordance with the Julian calendar. In the history of European culture, this period is considered part of the High Middle Ages and overlaps with what is often called the Golden Age' of the Cistercians". The Golden Age of Islam experienced significant development, particularly in Islamic Spain. In Song dynasty China, Jurchen campaigns against the Song dynasty, an invasion by Jurchens caused a political schism of north and south. The Khmer Empire of Cambodia flourished during this century, while the Fatimids of Egypt were overtaken by the Ayyubid dynasty. Following the expansions of the Ghaznavids and Ghurid dynasty, Ghurid Empire, the Muslim conquests in the Indian subcontinent took place at the end of the century. Events 1101–1109 *1101: In July, the Treaty of Alton is signed between Henry I of England and his older brother Robert Curthose, Robert, Duke of Normandy in which Robert agrees to recognize Henry as king of Eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hand Cannon
The hand cannon ( or ), also known as the gonne or handgonne, is the first true firearm and the successor of the fire lance. It is the oldest type of small arms, as well as the most mechanically simple form of metal barrel firearms. Unlike matchlock firearms it requires direct manual external Making fire, ignition through a touch hole without any form of firing mechanism. It may also be considered a forerunner of the handgun. The hand cannon was widely used in China from the 13th century onward and later throughout Eurasia in the 14th century. In 15th century Europe, the hand cannon evolved to become the matchlock arquebus, which became the first firearm to have a Trigger (firearms), trigger. History China Dazu Rock Carvings The earliest artistic depiction of what might be a hand cannon—a rock sculpture found among the Dazu Rock Carvings—is dated to 1128, much earlier than any recorded or precisely dated archaeological samples, so it is possible that the concept of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rifle
A rifle is a long gun, long-barreled firearm designed for accurate shooting and higher stopping power, with a gun barrel, barrel that has a helical or spiralling pattern of grooves (rifling) cut into the bore wall. In keeping with their focus on accuracy, rifles are typically designed to be held with both hands and braced firmly against the shooter's shoulder via a buttstock for stability during shooting. Rifles are used in warfare, law enforcement, hunting and shooting sports, target shooting sports. The invention of rifling separated such firearms from the earlier smoothbore weapons (e.g., arquebuses, muskets, and other long guns), greatly elevating their accuracy and general effectiveness. The raised areas of a barrel's rifling are called ''lands''; they make contact with and exert torque on the projectile as it moves down the bore, imparting a spin. When the projectile leaves the barrel, this spin persists and lends gyroscopic stability to the projectile due to conservatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PK Machine Gun
The PK (, transliterated as ''Pulemyot Kalashnikova'', or "Kalashnikov's machine gun"), is a belt-fed general-purpose machine gun, chambered for the 7.62×54mmR rimmed cartridge. The modernized and most commonly known variant, known as the PKM, features several enhancements over the original PK design. Designed in the Soviet Union and currently in production in Russia, the original PK machine gun was introduced in 1961 and the improved PKM variant was introduced in 1969. The PKM was designed to replace the SGM and RP-46 machine guns that were previously in Soviet service. The weapon remains in use as a front-line infantry and vehicle-mounted weapon with Russia's armed forces and has also been exported extensively and produced in several other countries under license. History The Main Artillery Directorate of the Soviet Union (GRAU) adopted specification requirements for a new 7.62 mm general-purpose company and battalion-level machine gun that was to be chambered for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sako TRG Folding Stock + Zeiss 3-12x56 SSG P
Sako Limited (natively ) is a Finnish firearm and ammunition manufacturer located in Riihimäki, Tavastia Proper in southern Finland. It also has owned the Tikka brand of bolt-action rifles since 1983, and is now owned by the Italian firearm holding company Beretta Holding. The name Sako comes from the company's former name (). History In 1919, two years after Finland declared independence from the Russian Empire, the Suojeluskuntain Yliesikunnan Asepaja (Civil Guard Supreme Staff Gun Works) opened in a former Helsinki brewery to repair private arms and recondition Russian military rifles for Finnish service. The rifle repair shop became financially independent of the civil guard in 1921. The Suojeluskuntain Yliesikunnan Asepaja moved from Helsinki to an ammunition factory in Riihimäki on 1 June 1927, and reorganized as SAKO in the 1930s. Sako started exporting pistol cartridges to Sweden in the 1930s and continued manufacturing submachine gun cartridges through World War ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bean Bag
A bean bag (also beanbag) is a sealed bag containing dried beans, PVC pellets, expanded polystyrene, or expanded polypropylene. The bags are commonly used for throwing games, but they have various other applications. Games * Beanbag was a game referred to at the turn of the twentieth century by Finley Peter Dunne as the antithesis of roughness of politics, ''Politics ain't beanbag!''. * Cornhole is a bean bag tossing game similar to horseshoes and quoits, played with bean bags and two goals. * Footbag (also known as Hacky Sack, a trademark) is a type of ball-shaped bean bag that is used to play various games. * Bean bags are also commonly used for juggling. * In gridiron football beanbags are used to mark the point of a change of possession (where a punt or kickoff is caught, an interception In Ball game, ball-playing Competitive sport, competitive team sports, an interception or pick is a move by a player involving a pass of the ball—whether by foot or hand, dep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
