The Gemtech Threaded Rear Mount Adaptor for GM-9 and Multimount Suppressors 5/8-24 Thread is a dedicated endcap adapter that extends Gemtech suppressor compatibility to fixed-barrel carbines and submachine guns. Built around the common 5/8-24 thread pattern, it provides a secure, direct-thread interface for .300 Whisper and .300 AAC Blackout platforms running subsonic ammunition, helping maintain alignment and consistent performance with GM-9 and Multimount cans.

This adaptor is ideal for shooters who want a clean, straightforward way to mount their Gemtech suppressor on .300 Blackout or .300 Whisper carbines without adding unnecessary bulk or complexity. It is specifically intended for fixed-barrel setups; most handguns will instead require Gemtech’s separate LID mount for proper cycling. Whether you are focused on quiet range sessions, training, or hunting with subsonic loads, this rear mount adaptor reflects Gemtech’s reputation for thoughtful engineering and reliable suppressor accessories.

Key Features:

• Manufacturer: Gemtech
• Model: Threaded Rear Mount Adaptor 5/8-24
• Caliber: .300 AAC Blackout / .300 Whisper (Subsonic Only)
• Product Type: Accessory - Silencer Accessories
• Thread Pattern: 5/8-24
• Compatibility: GM-9 And Multimount Suppressors