Black Rain Ordnance AR-15 SPEC15 Complete Upper Receiver
Black Rain Ordnance AR-15 SPEC15 Complete Upper Receiver, Black Rain Ordnance SPEC15 Forged Aluminum Upper Receiver 16" 4150 Chromoly Carbine Length Gas Barrel A2 Fixed Front Sight, Mil-spec Phosphate BCG Let It Rain, Dust Cover Model: SPEC15 Product Type: Upper Caliber: 5.56NATO