A CMMG rifle buffer spring (action spring) for AR-15 rifles. The buffer spring returns the bolt carrier forward after each shot, and a tired spring can cause short-stroking and feeding problems. This is a rifle-length spring for use with a rifle buffer tube. Compare the fitment details below with your firearm before ordering.
- Brand: CMMG
- MPN: 55CA93F
- Type: Rifle buffer / action spring
- Fits: AR-15 rifle-length buffer system
