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During testing, the bullet penetrated a 2×12 piece of pine wood, creating a hole in a wire reel. [75] 3DX [77] [78] muzzle brake July 2013 [77] Muzzle device: AR-15 rifle muzzle brake [77] DMLS w/ Inconel [77] Sintercore [77].223 Rem/ 5.56x45: Designed to tame the recoil and muzzle rise of an AR-15 semi automatic rifle chambered in 5.56×45mm ...
The design is a remix of an earlier 3D printable firearm, the Shuty AP-9 pistol by Derwood. [12] Where the "Shuty" relied on several factory-made or machined gun parts (like the barrel) in order to be completed, the FGC-9 made ergonomic and mechanical changes to accommodate builders without access to commercial gun parts or machine shops.
The .45-75 Winchester / 11.62x48mmR Centennial is an intermediate centerfire rifle cartridge developed in 1876 for the newly designed Winchester Model 1876 Centennial lever-action rifle. Winchester Repeating Arms Company introduced the rifle and cartridge at the United States Centennial Exposition .
Horse artillery—rows of limbers and caissons, each pulled by teams of six horses with three postilion riders and an escort on horseback (1933, Poland). A limber is a two-wheeled cart designed to support the trail of an artillery piece, or the stock of a field carriage such as a caisson or traveling forge, allowing it to be towed.
Stoner 63/63A Automatic Rifle: The Automatic Rifle is an open-bolt rifle fed from a top-mounted, 30-round magazine. The front and rear sights are offset to the left to compensate for the magazine's position. The AR does not have a semi-automatic mode. The automatic rifle configuration was field tested by the USMC for a short period during 1967.
To avoid the projectile shattering or ricocheting when it impacts the ground, a proprietary round-nosed 7.62×51mm bullet was developed for use with the rifle. The rifle could also use regular 7.62mm bullet for combat use. The rifle weights around 4.6–5 kg, has a barrel length of 510 mm (20.1 in) and overall length of 908 mm (35.7 in). [53] [54]
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The Close Quarter Battle Receiver (CQBR) [5] is a replacement upper receiver for the M4A1 carbine developed by the US Navy.. The CQBR features a 10.3 in (262 mm) length barrel (similar to the Colt Commando short-barreled M16 variants of the past) which makes the weapon significantly more compact, thus making it easier to use in, and around, vehicles and in tight, confined spaces.