Complete AR-15 Bolt Carrier Group, 5.56 or 300 Blackout
These are the very high quality AR15 complete Bolt Carrier Groups for the 5.56 Nato or .300 Blackout. These are manufactured to exact standards with no Frills added to be able to offer the best value and an affordable price. Features 9310 Bolt Material; 8620 carrier and gas key; Properly staked Investment cast gas key hardened to USGI specifications fastened with Hardened Grade 8 Fasteners; Shot peened MPI (Magnetic Particle Inspected) Bolt. Extractor insert installed. These BCGs are inspected to the highest of standards, to insure a high quality product that is 100% reliable for our customer. MADE IN THE USA!