18" BCB 6MM ARC SS Match Barrel
12.5" BCB 6MM ARC SS Match Barrel
BRT 14.5" OPTIMUM Hammer Forged Chrome Lined Barrel
BRT 12.5" OPTIMUM Hammer Forged Chrome Lined Barrel
BRT 11.5" OPTIMUM Hammer Forged Chrome Lined Barrel
BRT 16" PRO 556 Barrel
Black River Tactical MicroPin Gas Block - .750"
Forged M4 Upper Receiver (Assembled)
BRT M16 CHROME Bolt Carrier Group C158 HPT/MPI Auto
BRT M4A1 Bolt Carrier Group C158 HPT/MPI Auto
