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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 ...
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 ...
A carbine (/ ˈ k ɑːr b iː n / or / ˈ k ɑːr b aɪ n /), [1] from French carabine, [2] is a long arm firearm but with a shorter barrel than a rifle or musket. [3] Many carbines are shortened versions of full-length rifles, shooting the same ammunition, while others fire lower-powered ammunition, typically ranging from pistol/PDW to intermediate rifle cartridges.
List of Colt AR-15 and M16 rifle variants. ArmaLite AR-15 with the charging handle located on top of the upper receiver, protected within the carrying handle and a 25-round magazine. 1973 Colt AR-15 SP1 rifle with "slab side" lower receiver (lacking raised boss around magazine release button) and original Colt 20-round magazine.
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.
The Buffalo Arms bolt in this original M3 is dated January 1944. The M3 is an American .45-caliber submachine gun adopted by the U.S. Army on 12 December 1942, as the United States Submachine Gun, Cal. .45, M3. [ 12] The M3 was chambered for the same .45 ACP round fired by the Thompson submachine gun, but was cheaper to mass produce and lighter ...
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.
Rotating bolt, selective fire. Muzzle velocity. 2,800 ft/s (850 m/s) (5.56 mm from a 14.5 in barrel) Feed system. STANAG-compliant magazine. The ADCOR A-556 is an assault rifle based on the M16/M4 series. It is produced by the Adcor Defense Company and was one of the contenders in the US Army Individual Carbine Competition to replace the M4 ...