Brand new airsoft gun opened box never used on an actual field as it shots above the posted fps limit. Nylon Fiber receiver, with steel and aluminum construction Billet style nylon fiber receiver with enhanced trigger guard and ambidextrous controls 10" M-LOK hand guard for any M-LOK compatible accessories, with full length 20mm Picatinny top rail for attachment of optics and back-up iron sights Adjustable crane stock for customizable length of pull Ambidextrous sling plate Back-up quick flip-up iron sights Quick change spring gearbox Changeable backstrap grip plates Weight: 1920g Length: 710mm - 795mm, Adjustable Inner barrel: 280mm~ / 6.02mm Thread Direction: 14mm Negative Fire Modes: Semi/Full Auto, Safe Muzzle Velocity: 370-400 FPS Gearbox: Version 2 Gearbox w/ Quick change spring system, Fully upgradeable Hopup: Yes, Adjustable Aw Custom Hi-capa Green Gas Blowback pistol ( The gun is missing two screw that hold the slide in place so it moves but the gun fully shoots, (The missing screws highlighted in the picture), also (The pistol doesn't come with a magazine) Lancer Tactical Multi 4 Reticle Quick Detach Reflex Sight nine brightness modes red and green comes in an original box and parts with new batteries and extra ones The gun comes with a 120 round m4 magazine and I'm giving a 300 round hi capa m4 mag (For Free) Lancer Tactical 11.1V 1000MAH 20C LiPO Stick Battery (No Trades)