Mk107 Mod 1-M 223 Wylde Complete Upper Receiver - Mk107 Mod 1-M 223 Wylde 7.75'''' Bbl Complete Upper Receiver

MK107 MOD 1-M 223 Wylde Complete Upper Receiver SPECIFICATIONS: Operating System: PWS Long Stroke Piston System, 3 Setting Adjustable Gas Regulator Caliber: .223 Wylde Barrel Length: 7.75" Gas System Length: Pistol Barrel Twist Rate: 1:8 Muzzle Velocity: 2216 fps Muzzle Device: PWS Triad 556 Upper Receiver: PWS Proprietary Piston Upper, 7075-T651 Hard coat anodize, per Mil 8625 Type lll Class 2 Handguard: PWS M-LOK(TM) 7.1" Handguard (1.8" width, 2.1" height) Charging Handle