Unlike the WA M4 GBB series, the WE M4 series are all built to a 1:1 ratio to their real steel counterparts. Featuring realistic field stripping and a functional forward assist button the WE M4 CQB is a force to be reckoned with. Built fully in metal with ABS furniture, the WE M4 weighs only slightly heavier than the fully loaded Real Steel M4 at 3.3kg. Aesthetically the WE feels nice and solid with not play between the upper and lower receiver at all. The blowback feels nice and firm yet with very slight recoil, so if you prefer a low recoil GBB, then this is the gun for you! Length : 670mm / 750mm (Extended) Blow Back : YES Shooting Mode : Smei/ Fully Automatic Magazine Capacity : 30rds Bullet Type : 6mm BB Power Source : TOP GAS Power (Muzzle Velocity) : 430FPS