A CMMG replacement bolt catch spring for AR-15 rifles. This small spring pushes the bolt catch back down after the bolt is released, and it is easy to lose or weaken during a build or detail strip. It is an inexpensive part to keep on hand for lower receiver assembly and repairs.
- Brand: CMMG
- MPN: 55CA56C
- Type: Bolt catch spring
- Fits: AR-15
