Cmmg Action Tuning Kit – Mkg-mkgs-mk57

Description

Cmmg action tuning kit mkg/mkgs/mk57
FEATURES:-Allows you to adjust the action to your preference much like changing buffers or changing gas port settings on an adjustable gas block-1 oz weight, 2 oz weight, 3.4 oz weight (standard 9mm), (3) .250″x.625″ roll pins
Additional Info:-
Dimension: 0.80 X 4.70 X 6.00