Complete Bolt Group – RCM – HK MP5SD 9mm
Ideal to replace out-of-spec, worn, or broken bolt groups or for that custom build. Assembled with the ultra-desirable 115 LP for a true drop-in replacement. Each bolt group will work and fit on semi- or full-auto MP5SD 9mm-style firearms.
This is the finest US BCG available.
Includes:
- Bolt head complete
- SD locking piece – 115 Degree LP
- Firing pin
- Firing pin spring
- Full auto bolt carrier (works in semi and F/A)
- NOT compatible with: AP5SD models without modification.
