Tiger Rock AR-15 Bolt Carrier Group BCG Assembly Carpenter 158 Bolt Standard Design Black Nitride BCG-N. Specifications for Tiger Rock AR-15 Bolt Carrier Group (BCG) Assembly: Manufacturer: Tiger Rock Fabric/Material: Heat Treated Steel Cartridge:...
Tiger Rock AR-15 Bolt Carrier Group BCG Assembly Carpenter 158 Bolt Standard Design Black Nitride BCG-N. Specifications for Tiger Rock AR-15 Bolt Carrier Group (BCG) Assembly: Manufacturer: Tiger Rock Fabric/Material: Heat Treated Steel Cartridge:...