Description
Complete Bolt Group – RCM – HK MP5SD 9mm
Ideal to replace out of spec, worn or broken bolt groups or for that custom build. 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
- Firing pin
- Firing pin spring
- Full auto bolt carrier (works in semi and F/A)
