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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 ...
The basic infantry weapon of the United States Marine Corps is the M27 Infantry Automatic Rifle. Suppressive fire is provided by the M240B machine gun, at the squad and company levels respectively. In addition, indirect fire is provided by the M320 grenade launcher in fireteams, M224a1 60 mm mortar in companies, and M252 81 mm mortar in battalions.
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]
Army, Marine Corps M136 (AT4) Anti-tank rocket system: Alliant Techsystems: 84mm Army, Air Force, Marine Corps, Navy Adopted by the United States Army as the "Lightweight Multipurpose Weapon M136". M3 MAAWS: Anti-tank recoilless rifle: Saab Bofors Dynamics: 84x246mm R Army, USSOCOM: SMAW: Anti-tank rocket system: Nammo Talley: 83.5mm Army ...
The M4 carbine was developed from various outgrowths of these designs, including a number of 14.5-inch (368 mm)-barreled A1 style carbines. The XM4 (Colt Model 720) started its trials in 1984, with a barrel of 14.5 inches (370 mm). The weapon became the M4 in 1991.
There is also a military M4 Type Carbine which comes with a 14.5 in (370 mm) barrel and a removable "bird cage" flash suppressor. [5] An M4 Type Post-Ban Carbine was developed for the 1994 United States Federal Assault Weapons Ban requirements. Since the ban expired in 2004, this rifle has essentially been replaced by the M4A2 and M4A3.
The Air Force recently reinstated making recruits carry practice M4s, citing concerns of potential conflict with peer powers like Russia or China.
M4 Carbine Enhanced: 4th Generation M4 S-1-3-F A2 Yes Yes 5.56 NATO 14.5 in. M4 1:7 Yes A2 779: M4 Carbine: 4th Generation M4 S-1-3 [1] A2 Yes Yes 5.56 NATO