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The M27 Infantry Automatic Rifle (IAR) is a 5.56mm, select-fire assault rifle / squad automatic weapon developed from the HK416 by Heckler & Koch.It is used by the United States Marine Corps (USMC) and was originally intended for automatic riflemen, [6] but now is issued to all infantry riflemen as a replacement for the M4 carbine.
The United States Marine Corps Designated Marksman Rifle (DMR, NSN 1005-01-458-6235; more formally the United States Rifle, Caliber 7.62 mm, M14, DMR) is a semi-automatic, gas-operated rifle chambered for the 7.62×51mm NATO cartridge. It is a modified version of the M14 rifle formerly used by the United States 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.
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 ]
Morris "Bud" Fisher (May 4, 1890 – May 23, 1968) was an American sport shooter and United States Marine Corps shooting instructor. He competed at the 1920 and 1924 Summer Olympics and won five gold medals in 300–800 m rifle events. [1]
The Squad Advanced Marksman Rifle (SAM-R [2]) is a semi-automatic designated marksman rifle developed and used by the United States Marine Corps.It gave users the capability to provide fire in support of a rifle squad, providing precision fire in support of an assault, and aid in observation and adjusting of supporting arms.
The primary difference between the Army and the U.S. Marine Corps rifles is that while the U.S. Marine Corps M40 variants use the short-action version of the Remington 700/40x which is designed for cartridges having an overall length of 2.750 inches (69.85 mm) or less (such as the .308 Winchester/7.62×51 mm NATO), the Army M24 uses the ...
Within the Table of Organization and Equipment for both the United States Army and the United States Marine Corps, these two classes of weapons are considered as crew-served; the operator of the weapon has an assistant who carries additional ammunition and associated equipment, acts as a spotter, and is also fully qualified in the operation of ...