The Gemtech GM-45 threaded rear mount adapter is for use on your impressive GM-45 silencer. Designed to attach on fixed-barrel firearms, this endcap adapter affords the shooter (you) to utilize the .45 cal can with various mounting options, including 5/8×24, and 1/2×36, among other pitch sizes. Find your ideal thread to complete your purchase.
HOME OF SILENCERS SHOP NOTE:
The 5/8×24 mount is intended for use on a .300BLK firearm with SUBSONIC ammo only.