TRYBE Defense Mil-Spec 5.56 Enhanced Complete Bolt Carrier Group BCG Nickel Boron BCG-NB-ENH. 56 Enhanced Complete Bolt Carrier Group BCG. This superior bolt carrier is made of high strength AISI 8620 steel precision-machined on Citizen Swiss CNC...
TRYBE Defense Mil-Spec 5.56 Enhanced Complete Bolt Carrier Group BCG Nickel Boron BCG-NB-ENH. 56 Enhanced Complete Bolt Carrier Group BCG. This superior bolt carrier is made of high strength AISI 8620 steel precision-machined on Citizen Swiss CNC...