M4A1 Carbine

Weapon Name : M4A1 Carbine
Role : Assault rifle
Weapon Designer : Colt Defense
Manufacturer : Colt Defense
Unit Cost : N/A

Cartridge : 5.56x45mm NATO
Action : Gas-operated, rotating bolt
Rate of fire : 700-950 round/min cyclic
Muzzle velocity : 2,900 ft/s (880 m/s)
Effective range : 300 m (330 yd)
Maximum range : 800 m (870 yd)

Bio :
The M4 carbine is a family of firearms tracing its lineage back to earlier carbine versions of the M16, all based on the original AR-15 made by ArmaLite. It is a shorter and lighter version of the M16A2 assault rifle, achieving 80% parts commonality with the M16A2.[1] The M4 has selective fire options including semi-automatic and three-round burst (like the M16A2), while the M4A1 has a "full auto" option in place of the three-round burst.