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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.
The M4's 14.5" barrel length reduces muzzle velocity to about ... an M16A4 Rifle can be converted to an M4 Carbine in a few minutes by replacing the upper ...
Muzzle velocity: 2,970 ft/s (910 m ... By July 2015, major Marine Corps commands were endorsing switching to the M4 over the M16A4 as the standard infantry rifle ...
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 ...
Firearm muzzle velocities range from approximately 120 m/s (390 ft/s) to 370 m/s (1,200 ft/s) in black powder muskets, [3] to more than 1,200 m/s (3,900 ft/s) [4] in modern rifles with high-velocity cartridges such as the .220 Swift and .204 Ruger, all the way to 1,700 m/s (5,600 ft/s) [5] for tank guns firing kinetic energy penetrator ammunition.
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.
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.
The M234 Riot Control Launcher is an M16 series rifle or M4 series carbine attachment firing a M755 Grenade round. The M234 mounts on the muzzle, bayonet lug and front sight post of the M16. It fires either the M734 64 mm Kinetic Riot Control or the M742 64 mm CSI Riot Control Ring Airfoil Projectiles.