DealUpper Features: Upper: Standard AR15 Upper Receiver Barrel: 16" 5.56 CMV Carbine Length Barrel w/ Pinned FSB Handguard: M4 Style Handguard Gas System: Carbine Length Gas System Muzzle Device: Standard A2 Flash Hider Aero Precision Bolt Carrier Group, Complete Charging Handle from EMac's Tactical (Product Aero16Car) |