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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.
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 ...
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 ]
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 ...
The Bushmaster M4 [2] or M4A3 [3] is a semi-automatic or select-fire carbine size assault rifle manufactured by Bushmaster Firearms International, modeled on the AR-15. It is one of the Bushmaster XM15 line of rifles and carbines. [4]
Service history; In service: 2012–present: Wars: ISIL insurgency in the Philippines Islamic State insurgency in Iraq (2017-present) Production history; Manufacturer: Remington Arms Company Government Arsenal: Produced: 2012 – c. 2020: Specifications; Barrel length: R4 Patrol/Operator/Enhanced: 11.5 in (290 mm) R4 Patrol/Operator/Enhanced ...
Over 10,000 units were produced as early as 1943 but, in the same year, production was halted by Adolf Hitler. Hitler later approved mass production following testing with troops. On entering service, the weapon was known as the Sturmgewehr 44 (StG 44).
Germany: Mine clearing vehicle and Armoured engineering vehicle: Unknown (+ 6 on order) Order of 6 Wisent 2 MCV/AEV in July 2024. The delivery is planned to start in 2025. [162] Canada will lend Wisent 2 for the training of the Danish crews until the delivery of the first model. [163]