Mk116 Mod 1-M 7.62x39mm Complete Upper Receiver - Mk116 Mod 1-M 7.62x39mm 16.1'''' Bbl Complete Upper Receiver

MK116 MOD 1-M 7.62x39mm Complete Upper Receiver SPECIFICATIONS: Operating System: PWS Long Stroke Piston System, 3 setting Adjustable Gas Regulator Caliber: 7.62x39 Barrel Length: 16.1" 41V50 Steel Gas System Length: Carbine Barrel Twist Rate: 1:10 Muzzle Velocity: 2374 fps Muzzle Device: PWS Triad 30 Upper Receiver: PWS Proprietary Piston Upper, 7075-T651 Hard coat anodize, per Mil 8625 Type lll Class 2 Handguard: PWS M-Lok(TM) 15.0" Handguard (1.7" width, 2.25" height) Charging Handle: Radian Raptor(TM) Ambidextrous Charging Handle Mfg: Primary Weapons