BRG 5.56mm/.223 Complete Bolt Carrier Groups Nitride Black BCG556BRG. Specifications for BRG 5.56mm/.223 Complete Bolt Carrier Groups: Manufacturer: BRG Color: Black Finish: QPQ Nitride Fabric/Material: 8620 Steel Caliber: 5.56mm .223 Remington Gun...
BRG 5.56mm/.223 Complete Bolt Carrier Groups Nitride Black BCG556BRG. Specifications for BRG 5.56mm/.223 Complete Bolt Carrier Groups: Manufacturer: BRG Color: Black Finish: QPQ Nitride Fabric/Material: 8620 Steel Caliber: 5.56mm .223 Remington Gun...