The FailZero FZ 450 Bushmaster Bolt Carrier Group delivers reliable cycling for AR-15 platforms chambered in .450 Bushmaster.
- Part Type: Bolt Carrier Group (No Hammer)
- Compatible Firearms: AR-15 chambered in .450 Bushmaster
- Material: Steel carrier and bolt
- Finish: Nickel-Boron (NiB)
- Installation: Drop-In
- Includes: Bolt carrier, bolt assembly, firing pin, cam pin, retaining pin (hammer not included)










