.458 SOCOM .450 Bushmaster BCG Bolt Carrier Group .458 .450 Bolt Group BCG

These .458 SOCOM/.450 Bushmaster bolt carrier groups (BCGs) are Magnetic Particle Inspected (MPI) to ensure high performance. Our 458/.450 BCG is made with durable 9310 Steel and compatible with both all Rear Charging 450 Bushmaster and .458 SOCOM uppers; the gas key is also staked from the side for enhanced durability. Includes Bolt, Bolt Carrier, Extractor Pin, Firing Pin, and Cam Pin. Use our BCG for your next AR-15 build and experience high performance at a lower cost! 

Specifications:

Caliber / Guage: .450 / .458
Carrier Style: Standard
Platform: AR-15
Bolt Finish: Parkerized
Bolt Material: 9310 Steel
Carrier Finish: Black Nitride
Gas Key: Staked
Magnetic Particle Inspection: Yes