This Bolt O-Ring from FightLite Industries (part no. 15112) is built for the FightLite MCR platform, where it provides friction and tension against the firing pin during cycling.

Key Specifications

• Functions as the bolt o-ring, which provides friction and tension against the firing pin during cycling.
• Built for the FightLite MCR platform.
• Direct replacement/service part for maintenance or a worn-parts refresh.

Frequently Asked Questions

Does this fit a standard AR-15? No, this part is built specifically for the FightLite MCR platform, not a standard AR-15.

Is this a factory-spec replacement part? Yes, it’s manufactured by FightLite Industries as a direct replacement for this component in the MCR’s action.

Buy the FightLite MCR Bolt O-Ring

Keep an MCR running with this genuine FightLite Bolt O-Ring. It ships fast from our Lubbock, Texas gun shop, and our rifle parts selection has more MCR service and replacement parts.