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  2. RGD-5 - Wikipedia

    en.wikipedia.org/wiki/RGD-5

    The AK-47 can mount a (rarely used) cup-type grenade-launcher that fires standard Soviet RGD-5 hand-grenades. The soup-can shaped launcher is screwed onto the AK-47's muzzle. [ 6 ] It is prepared for firing by inserting a standard RGD-5 hand-grenade into the launcher, removing the safety pin, and inserting a special blank cartridge into the ...

  3. Firing pin - Wikipedia

    en.wikipedia.org/wiki/Firing_pin

    A firing pin or striker is a part of the firing mechanism of a firearm that impacts the primer in the base of a cartridge and causes it to fire. In firearms terminology, a striker is a particular type of firing pin where a compressed spring acts directly on the firing pin to provide the impact force rather than it being struck by a hammer.

  4. SVD (rifle) - Wikipedia

    en.wikipedia.org/wiki/SVD_(rifle)

    The firing pin in the SVD is not retained, i.e. "free-floating", and it is therefore possible for accidental discharge to occur as the bolt pushes an unfired cartridge into the chamber, should there be an obstruction in the firing pin channel resulting from poor maintenance or extreme cold.

  5. Bolt (firearms) - Wikipedia

    en.wikipedia.org/wiki/Bolt_(firearms)

    Bolt from a Karabiner 98k bolt-action rifle. Note the curved handle on the side for manual operation AR-15 bolt carriers AK-74 bolt and firing pin K31 bolt disassembled Slide locked back on a Desert Eagle pistol, showing the gas-operated rotating bolt mechanism

  6. AK-47 - Wikipedia

    en.wikipedia.org/wiki/AK-47

    The AK-47 was designed to be a simple, reliable fully automatic rifle that could be manufactured quickly and cheaply, using mass production methods that were state of the art in the Soviet Union during the late 1940s. [41] The AK-47 uses a long-stroke gas system generally associated with high reliability in adverse conditions.

  7. Lock time - Wikipedia

    en.wikipedia.org/wiki/Lock_time

    A firing pin and firing pin spring, whose design can greatly affect the lock time of a firearm. Lock time or action time refers to the time interval (often measured in milliseconds) from when the trigger of a firearm is activated until the firing pin strikes the primer, and depends on the design of the firing mechanism. A long lock time ...

  8. Open bolt - Wikipedia

    en.wikipedia.org/wiki/Open_bolt

    Compared to a closed-bolt design, open-bolt weapons generally have fewer moving parts. The firing pin is often part of the bolt, saving on manufacturing costs; the inertia of the bolt closing also causes the fixed firing pin to strike a blow on the primer, without need for a separate hammer/striker and spring.

  9. Firearm malfunction - Wikipedia

    en.wikipedia.org/wiki/Firearm_malfunction

    A slamfire is a premature, unintended discharge of a firearm that occurs as a round is being loaded into the chamber, when the bolt "slams" forward (hence the name), as a result of the firing pin having not been retracted into the bolt, or from the firing pin being carried forward by the momentum of returning to battery. Similar to a hammer ...