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  2. Action (firearms) - Wikipedia

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

    A break action is a type of firearm where the barrel(s) are hinged and can be "broken open" to expose the breech. Multi-barrel break action firearms are usually subdivided into over-and-under or side-by-side configurations for two barrel configurations or "combination gun" when mixed rifle and shotgun barrels are used.

  3. Automatic shotgun - Wikipedia

    en.wikipedia.org/wiki/Automatic_shotgun

    Daewoo USAS-12 automatic shotgun. An automatic shotgun is an automatic firearm that fires shotgun shells (thereby making it a shotgun) and uses some of the energy of each shot to automatically cycle the action and load a new round. [1] It will fire repeatedly until the trigger is released or ammunition runs out.

  4. Riot gun - Wikipedia

    en.wikipedia.org/wiki/Riot_gun

    Due to the reduced power of riot control rounds, there is insufficient energy to cycle the actions of gas operated and recoil operated firearms, so riot shotguns are manually operated, usually pump action. The advantage of using a riot shotgun for riot control is that the shotgun is a dual use firearm, and can switch quickly to and from the ...

  5. Riot shotgun - Wikipedia

    en.wikipedia.org/wiki/Riot_shotgun

    Hatsan Escort Magnum, security and law enforcement purpose 12 gauge semi-automatic shotgun. The primary characteristic of a riot shotgun is a "short" barrel (generally 14 to 20 inches (360 to 510 mm) long; 18 in (460 mm) is the shortest length available to civilians in the U.S. that is not subject to additional federal ATF regulation) which makes the shotgun more compact and easier to handle ...

  6. Recoil operation - Wikipedia

    en.wikipedia.org/wiki/Recoil_operation

    The short recoil action dominates the world of centerfire semi-automatic pistols, being found in nearly all weapons chambered for high-pressure pistol cartridges of 9×19mm Parabellum and larger, while low-pressure pistol cartridges of .380 ACP and smaller generally use the blowback method of operation. Short recoil operation differs from long ...

  7. Military 12-gauge cartridges - Wikipedia

    en.wikipedia.org/wiki/Military_12-gauge_cartridges

    Military use of combat shotguns through the 20th century has created a need for ammunition maximizing the combat effectiveness of such weapons within the limitations of international law. 12-gauge has been widely accepted as an appropriate bore diameter to provide an effective number of projectiles within an acceptable recoil. Early 12-gauge ...

  8. Shotgun - Wikipedia

    en.wikipedia.org/wiki/Shotgun

    Lever shotguns have seen a return to the gun market in recent years, however, with Winchester producing the Model 9410 (chambering the .410 gauge shotgun shell and using the action of the Winchester Model 94 series lever-action rifle, hence the name), and a handful of other firearm manufacturers (primarily Norinco of China and ADI Ltd. of ...

  9. Colt Defender Mark I - Wikipedia

    en.wikipedia.org/wiki/Colt_Defender_Mark_I

    The Colt Defender Mark I was an American multi-barreled shotgun intended for law enforcement or military use, completed in 1967. The shotgun was essentially a volley gun with eight single-shot barrels — each chambered for the 20-gauge 3-inch magnum shell — arranged in a octagonal fashion around the central axis, and could fire eight individual times like a Semi-automatic firearm without ...