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U.S. Marines with OKC-3S bayonets fixed to their M16A4 rifles during the Second Battle of Fallujah, November 2004.. The OKC-3S is part of a series of weapon improvements begun in 2001 by Commandant of the Marine Corps James L. Jones to expand and toughen hand-to-hand combat training for Marines, including training in the Marine Corps Martial Arts Program and knife fighting.
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.
In 1983, the US Marine Corps adopted the M16A2 rifle, and the US Army adopted it in 1986. The M16A2 fires the improved 5.56×45mm (M855/SS109) cartridge and has a newer adjustable rear sight, case deflector, heavy barrel, improved handguard, pistol grip, and buttstock, as well as a semi-auto and three-round burst fire selector. [21]
In 2007, the USMC ordered its officers (up to the rank of lieutenant colonel) and staff non-commissioned officers to carry the M4 carbine instead of the M9 handgun. [22] This is in keeping with the Marine Corps doctrine, "Every Marine a rifleman." [23] The Marine Corps, however, chose the full-sized M16A4 over the M4 as its standard infantry rifle.
U.S. Marines in November 2001 armed with M16A2 rifles equipped with AN/PEQ-2s. The AN/PEQ-2 succeeded the AN/PAQ-4C, which was designed in the early 1990s after the Persian Gulf War . [ 4 ] It was widely used by US forces during the War in Afghanistan and the Iraq War .
The United States Army, Air Force and Marine Corps field the Trijicon TA31RCO ACOG, a 4× magnification model with a 32mm objective lens (4×32), with specially designed ballistic compensating reticles that are fiber optic & tritium illuminated, for the M4 carbine and M16A4 rifle. [22]
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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 ...