Commonly Purchased with Bolt Assembly, AR15
Bolt Assembly, AR15
M16 bolt assembly. Ejector, Extractor, and Gas Rings pre-installed.
- Bolt: 9310 Steel, Phosphate Finish
- Extractor: 4140 Steel, Phosphate Finish
All CMMG products come with our Lifetime Quality Guarantee.
Specifications
| Platform | Mk4 |
| Caliber | .300 BLK, .350 Legend, 5.56mm |