WMD Guns 450 Bushmaster Bolt Carrier Group - NiB-X Finish

WMD Guns bolt carrier groups (BCGs) are made with high-performance coatings, leading manufacturing practices and best-in-class materials. With a nickel boron BCG from WMD Guns, you equip your AR for exceptional reliability in virtually any situation.

• Case-Hardened 9310 Steel Bolt
• Hardened, Heat-Treated and Chromed Firing Pin
• NiB-X Coated Cam Pin
• Full-Auto Nickel BCG
• .450 Bushmaster Bolt