A CMMG firing pin spring for the 22ARC .22 LR AR conversion. The spring returns the firing pin after each shot. A weak spring can cause ignition problems in the conversion, so replacing it is part of routine maintenance on a high-round-count kit. Compare the fitment details below with your firearm before ordering.
- Brand: CMMG
- Type: Firing pin spring
- Fits: CMMG 22ARC .22 LR conversion
