VFC Colt M4A1 RIS II AEG (Dual Tone)No orange tip for Canadian customers. Body: Full metal receiver Inner Barrel: ~380mm, 6. 05mm Bore Hopup: VFC rotary style chamber w 50 bucking Gearbox: V2 ECS gearbox w quick spring change Magazine: Standard M4 magazine Muzzle Velocity: 370 410 fps w 0. 2g Electronic: Mechanical trigger assembly Battery: 7. 4v 11. 1v M4 Stick Battery Location: Rear wired in a buffer tube Barrel Threading: 14mm CCW Licensed Colt receiver and Daniel Defense handguard.