GEM GM-45 Rear Thrdmnt M18x1 R

Gemtech GM-45 and Lunar-45 Threaded Rear Mounts (M18x1 RH) Caliber Sound Reduction Diameter Length Weight Mount Material Full Auto Rated Finish Thread size M18x1 RH Threaded End Cap adapters for use with the GM-45 and Blackside suppressors. These allow the use of the suppressor on Fixed barreled weapons.