Length: 860-955mm, adjustable Weight: 3040g Inner Barrel: 375mm Magazine Capacity: 300rd Hi-Capacity. Works with Matrix, G&G, Tokyo Marui and other compatible M4 / M16 Series Airsoft AEG Magazines Thread Direction: 14mm Negative Gearbox: Ver 2 Full Metal, Fully Upgradeable Motor: Long Type Fire Modes: Semi/Full-Auto, Safety Battery: 11.1v Stick LiPo Type recommended (Battery not included. Wired to the rear with small Tamiya connector) Hopup: Yes, Adjustable Package Includes: Gun, Magazine, Manual