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The M16 rifle (officially designated Rifle, Caliber 5.56 mm, M16) is a family of assault rifles adapted from the ArmaLite AR-15 rifle for the United States military. The original M16 rifle was a 5.56×45mm automatic rifle with a 20-round magazine.
Or, an M16A4 Rifle can be converted to an M4 Carbine in a few minutes by replacing the upper receiver/barrel and using simple hand tools to replace the fixed buttstock with a telescoping buttstock. [236] As such, the M16 can be easily converted into different calibers and different types of weapons. [237] [238] The AK-47 has no such capability.
Muzzle device M16 PIP: A2 Ribbed S-1-F, S-1-3 A2 Yes Yes 5.56 NATO 20 in. A2 1:7 Yes A1 or A2 Colt Advanced Combat Rifle: Retractable ACR ACR Type S-1-3 or S-1-F Flattop Yes Yes 5.56 NATO 20 in. A2 1:7 No ACR compensator M231 FPW: FPW Wire Short Round S-F None No No .223 REM 15.6 in. HBAR 1:12 No A1 M231 Recoil Operated Rifle: None Short Round ...
The Squad Designated Marksman Rifle (SDM-R [1]) is an American designated marksman rifle used by the United States Army. It is essentially a heavily modified M16 rifle designed to provide U.S. Army designated marksmen greater accuracy and firepower at longer ranges, increasing an infantry squad 's effective range to up to 600 meters.
Muzzle velocity: M193: 965 m/s (3,166 ft/s) SS109: 925 m/s (3,034.8 ft/s) Effective firing range: 250–400 m sight adjustments: Maximum firing range: 450 m (492 yd) Feed system: 30-round detachable STANAG box magazine (standard issue) or other STANAG magazines: Sights: Rear flip aperture, front post 513 mm (20.2 in) sight radius (standard rifle)
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 .458 SOCOM (11.63×40mmRB) is a moderately large round designed to work in an AR-15 platform.This is achieved by installing a 458 bolt and barrel. The 300-grain (19 g) round offers a supersonic muzzle velocity of 1,900 ft/s (580 m/s) and 2,405 ft⋅lbf (3,261 J), [1] similar to a light .45-70 but with a much smaller case.
This 5.56mm NATO round was even lighter and smaller than the Soviet 7.62×39mm AK-47 cartridge but possessed higher velocity. In U.S. service, the M16 assault rifle replaced the M14 as the standard infantry weapon, although the M14 continued to be used by designated marksmen. Although at 20 inches (510 mm), the barrel of the M16 was shorter ...