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The M4 carbine (officially Carbine, Caliber 5.56 mm, M4) is a 5.56×45mm NATO assault rifle developed in the United States during the 1980s. It is a shortened version of the M16A2 assault rifle. The M4 is extensively used by the US military , with decisions to largely replace the M16 rifle in US Army (starting 2010) and US Marine Corps ...
An M4 carbine, a common AR-15–style carbine. The M4 is the shorter, lighter carbine variant of the M16 rifle. A carbine ( / ˈkɑːrbiːn / KAR-been or / ˈkɑːrbaɪn / KAR-byn) [ 1] is a long gun that has a barrel shortened from its original length. [ 2] Most modern carbines are rifles that are compact versions of a longer rifle or are ...
The Close Quarter Battle Receiver (CQBR) [3] 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.
Effective firing range. 300 m. Feed system. STANAG magazines. Sights. Iron sights or various optics. The Bushmaster M4[ 2] or M4A3[ 3] is a semi-automatic or select-fire assault carbine manufactured by Bushmaster Firearms International, modeled on the AR-15. It is one of the Bushmaster XM15 line of rifles and carbines.
Design. 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 ...
The Individual Carbine was a competition to select the planned successor to the M4 carbine in the United States Army . The U.S. Army conducted an open competition for a carbine to replace the M4. This competition was for the Army only—the United States Marine Corps and other branches chose to stay with current weapons in service.
Colt 933. 30-round box magazine or other STANAG Magazines. The Colt Model 933 is a compact carbine based on the AR-15, M16 rifle and M4 Carbine produced by Colt starting in 1995. Due to its compact size, the short-barreled Colt 933 continues to be used by various US Special Forces and by some foreign forces, including Israeli Special Forces.
The M6 is a series of carbines designed and manufactured by LWRC International. It is based on the M4 carbine, with which it shares 80% of its parts. [ 2] The 'M' model name is not a US military designation. Like the HK416, it features a proprietary short-stroke self-regulating gas piston system and bolt carrier/carrier key design, which ...