Gemtech

Gemtech GM-9 Threaded Rear Mounts Caliber - 9 MM Sound Reduction Diameter Length Weight Mount Material Full Auto Rated Finish Thread size M13.5x1mm LH The Threaded Endcap Adapter to use on GM-9 and MULTIMOUNT suppressors when used with fixed barrel carbines and SMGs. NOTE: Most handguns require the use of our LID mount for proper function.