Product Description Specifications Brand: Lancer Tactical Operation: Electric Automatic Build: Metal Upper / Lower Receiver, Buffer Tube, Outer Barrel / Nylon Fiber Stock, Motor Grip Firing Modes: Semi-Automatic, Full-Automatic, Safety Muzzle Velocity: 330 - 350 FPS (w/ 0.20g BBs) Gearbox: Full Metal Version 2 Battery: 9.6v Nunchuck Hop-Up: Yes, Adjustable Inner Barrel Length: 317.5mm Inner Barrel Diameter: 6.03mm Magazine Capacity: 300 Round Hi-Cap Weight: 4.10 lbs Color: Black Features Durable metal outer barrel 6.03mm tightbore inner barrel diameter size Free float rail system 3 Holes for rail segment attachments (Rails Not Included) Quick change spring guide system for rapidly adjusting muzzle velocity Battery placement is sealed with a cover located in the back of the stock Enhanced motor grip with positive texturing for improved handling Improved crane stock with rubberized buttpad w/ double sided sling mount Flip-Up front and rear sights for optic attachments WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov/product Customer Reviews