The Gemtech threaded rear mounts feature a specific thread pitch in order to match your fixed barrel carbine, or sub machine gun with either a Gemtech GM-45 or a Gemtech Blackside suppressor. The Gemtech Threaded rear mounts are precision machined and threaded to ensure a precise fit and flawless looking finish.

Specifications and Features:
Gemtech Threaded Rear Mounts 12198
Threaded Rear Mount
Threaded Metric 13.5x1 Left Hand
Matte Black

Fits:
Gemtech GM-45/Blackside Suppressors