Description
CMMG’s bolt rehab kit refreshes a tired AR-15 BCG without buying a complete bolt. Drop-in mil-spec replacements for the consumable parts on any 5.56 / .223 / 300 BLK bolt — all US-made.
Covers virtually every part on a standard bolt that loses tension, peens, or cracks after a few thousand rounds. If your rifle is throwing brass past 4 o’clock, ejecting weakly, or short-stroking after long sessions, the extractor spring and gas rings are usually the first to replace — both are in the kit.
Kit contents:
- Ejector
- Ejector spring
- Ejector roll pin
- Extractor
- Extractor spring with buffer
- Extractor pin
- Extractor spring O-ring
- Firing pin
- Firing pin retaining pin
- Cam pin
- Gas rings (3)
Specs:
- Fits: AR-15 — 5.56 NATO / .223 Rem / 300 BLK bolts
- Meets or exceeds mil-spec
- Origin: USA
- Manufacturer P/N: 55AFF68
