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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.
Barrett was still selling its limited stock of the M468 but only as an upper receiver kit and not as a complete rifle up until 2010. [ 11 ] The M468 has been largely replaced by its upgraded version, the Barrett REC7 , which operates via a short stroke piston that minimizes the direct impingement rifle's issues with gases in the receiver. [ 9 ]
M4 (5.56×45mm NATO) (the U.S. Army was upgrading and retrofitting their existing stock of M4 carbines to the specifications of the M4A1, starting in 2014 and was predicted to be completed by 2020) [needs update] Mk 18 Mod 0 CQBR (Close Quarters Battle Receiver) (5.56×45mm NATO) (USMC Recon, USCG DSF, USN SEALs, USSOCOM, and USASOC)
The Close Quarters Battle Receiver (CQBR) was originally a Special Operations Peculiar Modification (SOPMOD) program item that would increase the close quarters maneuverability of the M4A1 by mating the lower receiver with a 10.3-inch (262 mm) barreled upper receiver; with the CQBR installed, the weapon would then be classified as the Mk. 18 ...
Vietnam-era rifles used by the US military and allies. From top to bottom: M14, MAS 36, M16 (30 round magazine), AR-10, M16 (20 round magazine), M21, L1A1, M40, MAS 49 The Vietnam War involved the People's Army of Vietnam (PAVN) or North Vietnamese Army (NVA), National Liberation Front for South Vietnam (NLF) or Viet Cong (VC), and the armed forces of the People's Liberation Army (PLA), Soviet ...
The Colt ACC-M (Advanced Colt Carbine-Monolithic) adds Colt's proprietary, monolithic Mil-Std-1913 rail system (quad rail) forward hand guard to the normal M4 carbine upper receiver. Colt M4 Carbines and Colt M4A1 Carbines can be easily and relatively inexpensively modified/upgraded into ACC-Ms by replacing the upper receiver, which is more ...
M4A1, a variant of the M4 Carbine; M82A1, M82A1A and M82A1M, three variants of the American Barrett M82 rifle; M96-A1, a variant of the American Robinson Armaments M96 Expeditionary rifle; PSG1A1, a variant of the German Heckler & Koch PSG1 sniper rifle; Steyr AUG A1, a variant of the Austrian 5.56 mm assault rifle
Germany: Armoured vehicle-launched bridge: Unknown [179] 8 purchased from the Netherlands, 2 from Germany in 1994. Additional spare bridges can are transported by semi-trucks. [180] It is being replaced by the Leguan based on the Leopard 2, and some were supplied to Ukraine. [164]