Bear Creek Arsenal

Shoot a huge range of calibers with this bolt carrier group (bcg) compatible with Rear Charging .458 SOCOM/.450 Bushmaster AR-15 uppers or rifles! Bear Creek Arsenal's .458 SOCOM/.450 Bushmaster bolt carrier groups (BCGs) are Magnetic Particle Inspected (MPI) to ensure high performance. BCA's .458 SOCOM/.450 Bushmaster BCG is made with durable 9310 Steel and the gas key is also staked from the side for enhanced durability. Use a Bear Creek Arsenal BCG for your next AR-15 build and experience high performance at a lower cost! 

Specifications:

Brand: Bear Creek Arsenal
Caliber / Gauge: .458 SOCOM/.450 Bushmaster
Carrier Style: Standard
Platform: AR-15 
Bolt Finish: Parkerized
Bolt Material: 9310 Steel 
Carrier Finish: Black Nitride
Gas Key: Staked from the side to increase longevity 
Magnetic Particle Inspection: Yes