The CMMG Action tuning kit is specifically designed for the CMMG MKG Guard platform. If you have been searching for the smoothest shooting carbine possible or are looking for added reliability while shooting hotter loads or suppressors, then the CMMG Action Tuning Kit is for you. The optional Action Tuning Kit allows you to adjust the action to your preference much like changing buffers or changing gas port settings on an adjustable gas block.

Specifications and Features:
CMMG Action Tuning Kit 45AFF17
1oz weight
2oz weight
3.4oz weight (standard 9mm)
Three .250" x .625" roll pins
Matte Black