Cryptic AR15 Steel Bolt Carrier Manganese Phosphate CC-BCK-0104. 308 WIN / 7.62x51mm / 6.5 Creedmoor) machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG includes the proper chrome...
Cryptic AR15 Steel Bolt Carrier Manganese Phosphate CC-BCK-0104. 308 WIN / 7.62x51mm / 6.5 Creedmoor) machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG includes the proper chrome...