FailZero Bolt Carrier Group Bolt Carrier Group Silver No Hammer Nickel Boron FZ-6MM-ARC-NH. 8 SPC Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most Mil-Spec upper receivers chambered in 6.8 SPC. All critical parts are coated...
FailZero Bolt Carrier Group Bolt Carrier Group Silver No Hammer Nickel Boron FZ-6MM-ARC-NH. 8 SPC Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most Mil-Spec upper receivers chambered in 6.8 SPC. All critical parts are coated...