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2. Caliber conversion device - Wikipedia

   en.wikipedia.org/wiki/Caliber_conversion_device

   One exception to the use of a special lightweight bolt was the Colt Service Ace, offered as a complete pistol or as a conversion kit for the M1911. While still nominally a blowback conversion, the Service Ace used a special "floating" chamber in the barrel that acted like a gas operated firearm's piston, helping push the bolt back with more ...

3. Gauge (firearms) - Wikipedia

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

   The 18, 15, 11, 6, 3, and 2 gauge shells are the rarest of all; [10] owners of these types of rare shotguns will usually have their ammunition custom loaded by a specialist in rare and custom bores. The 14 gauge has not been loaded in the United States since the early 20th century, although the 2 + 9 ⁄ 16-inch (65 mm) hull is still made in ...

4. Shotgun cartridge - Wikipedia

   en.wikipedia.org/wiki/Shotgun_cartridge

   A 12-gauge shotgun cartridge in a transparent plastic hull, allowing the contents to be seen. From left to right: brass, propellant, over-powder wad, shot wad, #8 birdshot, over-shot wad, and crimp. A shotgun cartridge, shotshell, or shell is a type of rimmed, cylindrical (straight-walled) ammunition used specifically in shotguns.

5. M26 Modular Accessory Shotgun System - Wikipedia

   en.wikipedia.org/wiki/M26_Modular_Accessory...

   The M26-MASS (Modular Accessory Shotgun System) is a shotgun configured as an underbarrel ancillary weapon attachment mounted onto the handguard of a service rifle, usually the M16/M4 family of United States military, essentially making the host weapon a combination gun.

6. Cartridge (firearms) - Wikipedia

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

   The head of a brass case can be work-hardened to withstand the high pressures, and allow for manipulation via extraction and ejection without rupturing. The neck and body portion of a brass case is easily annealed to make the case ductile enough to allow reshaping so that it can be handloaded many times, and fire forming can help accurize the ...

7. KS-23 - Wikipedia

   en.wikipedia.org/wiki/KS-23

   The shotgun is multicharged, with a tubular underbarrel magazine of 3-cartridge capacity. Reloading is provided with a removable fore-end. The presence of the special barrel rear projection on the frame combined with the rear sight gives the possibility of mounting an optical sight. The shotgun is intended for the amateur hunting with shot ...

8. Caseless ammunition - Wikipedia

   en.wikipedia.org/wiki/Caseless_ammunition

   Even in completely plastic-bodied cartridges, such as the Activ brand shotgun shells, a thin metal ring is molded into the rim to provide support for the extractor. [10] [15] [16] A secondary issue is that ammunition in use can be exposed to air, water, lubricants, and solvents. Primer and propellant in external-propellant caseless rounds is ...

9. Glossary of firearms terms - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_firearms_terms

   Parts kit: A kit of firearm parts minus the receiver. Used to build a complete firearm with the purchase or manufacture of a receiver (regulated in the US). Percussion cap: a small cylinder of copper or brass that was the crucial invention that enabled muzzle-loading firearms to fire reliably in any weather. The cap has one closed end.