Full metal receiver and barrel assembly Flat top upper receiver allows for easy integration of optics or other accessories 12" metal free float 20mm accessory rail allows for mounting of most popular 20mm accessories Fixed full size M16 style stock provides a large battery compartment, allowing for use of many different battery types Enlarge ambidextrous magazine release Front and rear slip up sights Reinforced V2 gearbox Manufacturer: CYMA FPS: 400 Flat Dark Earth Length: 1040mm Weight: 3100g Inner Barrel: 450mm Magazine Capacity: 250rd Hi-Capacity. Works with Matrix, G&G, Tokyo Marui and other compatible M4 / M16 Series Airsoft AEG Magazines Muzzle Velocity: 400 - 420 FPS (Measured with 0.20g BBs) Thread Direction: N/A Gearbox: Ver 2 Full Metal, Fully Upgradeable Motor: Long Type Fire Modes: Semi/Full-Auto, Safety Battery: Wired to stock with small Tamiya connector This gun is brand new, only shot in the backyard once, has amazing accuracy and range, this is a great dmr. Comes with 2 low cap mags, a metal target and tinted safely goggles. Open to offers!!!