This is the newest version release reinforced model of the most popular MKI gas non-blowback carbine pistol / rifle. Now with metal hopup unit that ensures range and accuracy! This odd looking pistol / rifle hybrid makes for the perfect lightweight designated marksman rifle, or counter sniper platform. Features: High FPS / range Compact / low profile making the gun easily portable On-frame safety Newest version with metal hop-up Gas efficient non-blowback design Integrated front and rear sight Top rail for mounting Picatinny / Weaver optics Dimension: 33" Long x 5.5" Tall. Weight: 5 lbs. Range: 100 feet. Velocity: 420~450 FPS Magazine Capacity: 16 rounds / Magazine. Magazine Included. . BB: 0.25g, 0.28g, 0.30g or heavier are recommended for best performance. (Not included) Power: Gas / Propane Adapter.