Features: + G&G Zinc Metal and fully upgradable reinforced V2 gearbox + Semi / Fully Automatic modes + Everything is 100% compatible to G&G and Marui series AEG + Comes with G&G M4 450 round hi-cap mag + Adjustable Hopup + 6 Position Retractable LE shoulder-rest + Removable top handle with weaver rail base for scope mounting + Adjustable front & rear sight + Strap adapters + 14mm negative threaded barrol + High torque long type G&G motor + Barrol System, gearbox, b-tube, mag, top handle, switch, pins. Dimension: 785 / 885mm Weight: 2800g Inner Barrol Length: 363mm Gearbox: Version 2 Range: 120 feet Muzzle Velocity: 320-340FPS Mag: 450 rounds G&G Hi-cap mag. (Use all M4-Style series Mag) Motor: Long Type Battery: Small Type BB: 6mm Airsoft BB. Best with Matrix 0.20 / 0.23 / 0.25g BB Package Includes: AEG, Hi-cap Mag, Cleaning Rod, Manual, 9.6v Small Type Battery, Smart Charger Manufacturer: G&G - Combat Machine series / Taiwan