The FailZero 9mm Bolt Carrier Group is engineered for blowback-operated 9mm AR-pattern pistols and carbines.
- Part Type: Bolt Carrier Group
- Compatible Firearms: 9mm AR-pattern pistols and carbines (hammerless systems)
- Material: Mil-spec steel
- Finish: Black nitride with EXO nickel boron coating
- Installation: Drop-in (headspacing verification and function testing required)
- Includes: Bolt, carrier, cam pin, firing pin










