JMAC 4 prong compensated 5/8x24 (GFHC)
The GFHC is a combination of the German G36 flash hider and DeadAir Silencers KeyMount.
This is the compensator version that has to be timed in order to reduce muzzle
SHIMS ONLY NEEDED FOR TIMING
KeyMo & KeyMicro Suppressor compatible
17-4ph Stainless Steel
*always know what muzzle devices configurations are compatible with your silencer