Closed boltA semi or full-automatic firearm which is said to fire from a closed bolt is one where, when ready to fire, a round is in the chamber and the bolt and working parts are forward. When the trigger is pulled, the firing pin or striker fires the round; the action is cycled by the energy of the shot, sending the bolt to the rear, which extracts and ejects the empty cartridge case; and the bolt goes forward, feeding a fresh round from the magazine into the chamber, ready for the next shot.
Kalashnikov ConcernJSC Kalashnikov Concern (Конце́рн Кала́шников), known until 2013 as the Izhevsk Machine-Building Plant (Иже́вский машинострои́тельный Заво́д (ИЖМАШ)), is a Russian defense manufacturing concern and joint-stock company headquartered in the city of Izhevsk in the Republic of Udmurtia as well as the capital city of Moscow. The concern designs and produces a wide range of civilian and military weapons including assault rifles, sniper rifles, designated marksman rifles, machine guns, squad automatic weapons, hunting rifles, shotguns, guided artillery projectiles, and a wide range of other precision weapons including remote controlled weapon stations, unmanned vehicles and military robots.
Pistol gripOn 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 pistol. In firearms, the pistol grip is located behind the trigger and generally held by the hand that operates the trigger. Rifles and shotguns without pistol grips are generally referred to as having "straight" or "upland" (shotguns only) style stocks.
Drum magazineA 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. In 1853, the first revolving drum magazine was patented by Charles N.
Arms traffickingArms trafficking or gunrunning is the illicit trade of contraband small arms, explosives, and ammunition, which constitutes part of a broad range of illegal activities often associated with transnational criminal organizations. The illegal trade of small arms, unlike other organized crime commodities, is more closely associated with exercising power in communities instead of achieving economic gain. Scholars estimate illegal arms transactions amount to over US$1 billion annually.
GunsmithA gunsmith is a person who repairs, modifies, designs, or builds guns. The occupation differs from an armorer, who usually replaces only worn parts in standard firearms. Gunsmiths do modifications and changes to a firearm that may require a very high level of craftsmanship, requiring the skills of a top-level machinist, a very skilled woodworker, and even an engineer. Gunsmiths perform factory-level repairs and renovations to restore a well-used or deteriorated firearms to new condition.
