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The Barrett M468 was a variant of the M4 Carbine, rechambered for a heavier and larger 6.8mm bullet for increased terminal performance. The designation of M468 stands for an M4 carbine chambered for the 6.8mm SPC cartridge. It was an attempt to create an optimal Special Operations close-to-medium range carbine for Close Quarter Battle (CQB).
The Barrett REC7 (designation stands for "reliability-enhanced carbine") [1] is an American firearm manufactured as a selective-fire fully-automatic and semi-automatic rifle by Barrett Firearms. It is an M4 carbine utilizing a short-stroke gas piston system and is available in either 5.56×45mm NATO or 6.8mm Remington SPC .
Barrett Firearms Manufacturing is an Australian-owned, American manufacturer of firearms and ammunition located in Christiana, Tennessee. It was founded in 1982 by Ronnie G. Barrett for the purpose of building semi-automatic rifles chambered for the .50 BMG (12.7×99mm NATO) ammunition, originally developed for and used in M2 Browning machine guns.
Barrett M468: Barrett Firearms Manufacturing: 5.56×45mm NATO 6.8mm Remington SPC United States: 2007 Bendix Hyde carbine: Bendix Corporation.30 Carbine United States: 1941 Beretta AR70/223: Fabbrica d'Armi Pietro Beretta: 5.56×45mm NATO Italy: Yes 1972-1990 Beretta AR70/90: Fabbrica d'Armi Pietro Beretta: 5.56×45mm NATO Italy: Yes 1990 ...
The 6.8mm Remington Special Purpose Cartridge (6.8 SPC, 6.8 SPC II or 6.8×43mm) is a rimless bottlenecked intermediate rifle cartridge that was developed by Remington Arms in collaboration with members of the U.S. Army Marksmanship Unit and United States Special Operations Command [6] to possibly replace the 5.56 NATO cartridge in short barreled rifles (SBR) and carbines.
Testing took place from March to April. 6,000 rounds were fired in 120 round cycles, and the guns were lubricated and allowed to cool after 600-round intervals. During the tests, no parts had to be replaced and there were no jams, stoppages, or malfunctions of any kind.
Collectors today prize well-maintained Atari consoles and rare game cartridges, with some fetching several thousand dollars. These home or arcade video games, particularly in their original, or ...
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.