Selling a brand new High performance M4 R.I.S with an Electric blowback system, giving it an extra level of realism. full metal built gearbox. Durable and reliable build quality. Quality Tokyo Marui spec v2 gearbox. Features a quad rail system, easy to customize and modify to your liking. This Rail space allows for attachment of Scopes, forgrips, TAC lights, PEQ boxes, lasers and more. Utilizes standard m4 buffer tube, to attach all sorts of different stocks combinations, The customization is endless with this design. OEM APS Not only does this gun look amazing, the performance backs it up. Shoots accurately at 390 FPS. Consistent groupings and very accurate at far ranges. Hops .28g bbs with ease. Gearbox is high end and rated to handle a Lipo Battery. Satisfying Electric blowback, loads of fun to shoot. Package includes - M4 R.I.S w/ full metal GB - high capacity 450 Rnd Stanag Magazines - Flip up sights - 6 positioning adjusting crane stock - Precision Grade .25g BBs Sling, Rail covers, scope and other attachments available for sale separately More details/ specs FPS Range: 380-395 Length: 690mm - 770mm Weight: 2280g Inner Barrel: 300mm Magazine Capacity: 250rd - 500ound Hi-Capacity. Works with , G&G, Tokyo Marui and other compatible M4 / M16 Series Airsoft AEG Magazines Muzzle Velocity: 380 FPS (Measured with 0.20g BBs) Thread Direction: 14mm Negative Gearbox: Tokyo Marui spec Ver 2 Full Metal, Fully Upgradeable Motor: Long Type , high rate of fire Fire Modes: Semi/Full-Auto, Safety Battery: 9.6v Small Butterfly Type recommended OR LIPO battery. Fully Lipo compatible . Wired to stock with small Tamiya connector) Hopup: Yes, Adjustable Battery, Charger, Forgrip, Slings, Optics, stocks and additional mags also available for sale separately. Some optics/accessories are shown for customization potential, and not included with price