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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.
By using various upper assemblies, buttstocks, and pistol grips, the weapon could be configured as an assault rifle, a carbine, a submachine gun, an open-bolt squad automatic weapon, a belt-fed light machine gun, or a survival rifle. There was a second belt-fed machine gun developed under the CAR-15 program called the CMG-1, CMG-2, and CMG-3 in ...
The 14.5×114mm (.57 calibre) is a heavy machine gun and anti-materiel rifle cartridge used by the Soviet Union, the former Warsaw Pact, modern Russia, and other countries.. It was originally developed for the PTRS and PTRD anti-tank rifles, and was later used as the basis for the KPV heavy machine gun that formed the basis of the ZPU series anti-aircraft guns that is also the main armament of ...
Colt Carbine (AR-15A2 Government Carbine) (Special export model with receiver block and large pin upper receiver) 3rd Generation Short Ribbed S-1 A2 Yes Yes 5.56 NATO 16 in. A1 1:7 Yes/No A2 R6530 Sporter Lightweight .223 3rd Generation Short Ribbed S-1 A2 Yes Yes 5.56 NATO 16 in. A1 1:7 No A2 R6550 AR-15A2 Government A2 Ribbed S-1 A2 Yes Yes
Since Colt Canada developed and released the MRR (Modular Rail Rifle) that uses a monolithic upper receiver with the Magpul M-LOK attachment system, the Canadian Armed Forces (CAF) might be heading in that direction instead, along with a shorter, 18.6-inch (470 mm) barrel, instead of the standard 20-inch (508 mm) barrel, and straight gas tube ...
The Colt AR-15 is a product line of magazine-fed, gas-operated, autoloading rifle manufactured by Colt's Manufacturing Company ("Colt") in many configurations. [1] The rifle is a derivative of its predecessor, the lightweight ArmaLite AR-15, an automatic rifle designed by Eugene Stoner and other engineers at ArmaLite in 1956.
The Mk 12 Mod H was used primarily by Army SOF and Special Mission Units (SMU), and featured a retrofit upper of the Mod 0 with PRI Gen3 round handguards and a shorter RECCE rail to replace the original Swan Sleeve, reducing weight, and either Douglas or Noveske barrels made with the SPR profile in a rifle length gas system. [9]
Eight US Navy standard 14-inch/45-caliber guns, complete with mountings, were built by Bethlehem Steel for the Greek battleship Salamis under construction in Germany. When World War I started, Bethlemen Steel cancelled the sale and offered the guns for purchase by the United Kingdom.