The M4 carbine is extensively used by the United States Armed Forces and is largely replacing the M16 rifle in United States Army and United States Marine Corps combat units as the primary infantry weapon. However, the USMC chose the full-sized M16A4 over the M4 as its standard infantry rifle. While ordinary riflemen in the USMC are armed with M16A4, M4 are used by troops in positions where a full-length rifle would be too bulky, including vehicle operators and fireteam and squad leaders.

In 1984, Colt began work on a new carbine design called the XM4 combining the best features of the Colt Commando and M16A2 rifles. In May 1991, the XM4 was renamed to the M4. In 1994, the U.S. military officially accepted the M4 into service to replace M16A2 in certain roles. The M4 carbine has also replaced most submachine guns and selected handguns in U.S. military service.

Features:
‧Comes with Metal Cerakote Coating upper receiver with 20mm top rail for optics
‧Comes with Metal Cerakote Coating lower receiver with marking
‧Comes with Polymer handguard with Metal dummy heat shields
‧Comes with Metal outer barrel with detachable flash hider(14mm CCW)
‧Comes with Metal fixed traingular front sight with sling swivel and bayonet lug
‧Comes with Polymer detachable carry handle/rear sight(adjustable windtage and elevation)
‧Comes with Polymer non-slip A2 style pistol grip
‧Comes with Polymer M4 MIL-SPEC stock with sling ring
‧Comes with Metal 6 position stock tube
‧Comes with Metal charging handle, bolt carrier and dust cover
‧Comes with Metal trigger, selector, magazine release, bolt release and forward assist
‧Pachage includes Metal housing 35 rounds gas mgazine

Specifications:
Length: 775mm
Barrel Length: 370mm
Weight: 2940g (with magazine)
Color: Black
Material: Metal, Polymer
Hop-up: Adjustable
Shooting Mode: Safety, Semi-Auto, Full-Auto
Magazine Capacity: 35 Rounds
Bullet Type: 6mm BB
Gas: 8KG (134a), 12KG (Green Gas)
Power(Muzzle Velocity): 320 FPS (0.2g BB, Green Gas)
Manufacturer: Tokyo Marui