| Platform | MkGs |
| Caliber | .40 S&W |
| Operating System | Radial Delayed Blowback |
AR Parts Notice - State/local restrictions may apply in CT, DC, IL, MA, NJ, NY, or WA. Customers must review our Shipping Policy prior to ordering.
Parts Kit, Bolt Maintenance, MkGs, 40 S&W
Replacement parts for MkG (40 S&W) Bolt
Kit Includes:
- MkG (40 S&W) Extractor
- Extractor Spring
- Extractor Pin
- 1-16″ Roll Pin
- Extractor Buffer
- MkG (40 S&W) Ejector
- Bolt Spring
- Ejector Spring
**Image may not show correct caliber, but parts in the kit are for 40 S&W**