Features: Full Metal Receiver, Stock, Barrel Assembly, Feed Cover, and Bipod Nylon Fiber Reinforced Handguard and Motor Grip 8mm Full Metal Gearbox Full Length Stock 2400rd Box Magazine included Adjustable Front and Rear Sights Steel Folding Bipod Length: 1100mm Weight: 6800g Inner Barrel: 509mm Magazine Capacity: 2400rd Box Magazine. Compatible with Matrix, G&G, Tokyo Marui and other similar M4 / M16 Series Airsoft AEG Magazines and Classic Army Box Magazines. NOT compatible with G&P M249 Box Magazines Muzzle Velocity: 380 FPS (Measured with 0.20g BBs) Thread Direction: 14mm Negative Gearbox: Custom Full Metal, Fully Upgradeable Motor: Short Type Fire Modes: Full-Auto, Safety Package Includes: Gun, Box Magazine, Bipod Battery: 9.6v Small Butterfly Type recommended (Battery not included) Hopup: Yes, Adjustable