Features:
M4A1 carbine replica model 6mm AEG electric airsoft BB machine gun
Full size 1:1 scale
Anti-shock resin & metal construction
UK legal black & 2 tone
Resin & metal gearbox plus hi torque motor
Incredible 330 fps Velocity (0.20g factory specs)
Rate of fire 650-750 pellets’s / min (factory specs)
Switchable fire modes - safety / single shot / full auto
Ammo clip: 50 round (standard M4)
Adjustable sight
Range up to 60 metres / 66yds
Infornmation:
Model: SR4 A1 CARBINE AEG
Materials: Steel, Zine Alloy, Nylon, Rubber
Length: 760/850mm
Weight:2900g (6.4 pounds)
Power Source: GBB
Action: Semi/Auto
Ammo Type: 6mm airsoft BBs
Ammo Capacity: 300 round magazine
FPS: 400
Bunker Tech Upgrades
Maple leaf gbb 6.02mm Inner Barrel
Maple leaf  High Accuracy Hop-up Bucking- Internal Parts Adjust
All function checks, to avoid common tolerance issues.
BB weight for optimal performance: 0.36 gram