Complete BCG Repair Kit For Mk57 5.7×28
Comes With Following Parts:
- Bolt – 5.7x28mm
- Firing Pin
- Firing Pin Retainer Pin
- Key (RDB)
- Key Screw X 2
- Bolt Cam Pin
- Extractor
- Ejector
- Ejector Spring
- Bolt Spring (RDB)
**Image may not show correct caliber, but parts in kit are for 5.7x28mm**
