The Gemtech GM-45/BLKSD Piston 1/2x28 is a precision-machined suppressor adapter designed specifically for GM-45 and Blackside pistol suppressors. Built around the popular 1/2x28 thread pitch, it allows shooters to mount their Gemtech .45-caliber suppressor to properly threaded 9mm and .40 caliber host pistols while maintaining secure alignment and smooth operation.

This LID piston core makes it easy to swap between compatible threaded barrels, supporting versatile range use and training with multiple handguns on a single suppressor. Its robust construction and carefully engineered gas venting help preserve reliability and cycling while keeping weight to a minimum. The GM-45/BLKSD piston reflects Gemtech’s long-standing reputation for thoughtful suppressor accessories and consistent machining quality.

• Manufacturer: Gemtech
• Model: GM-45/Blackside Piston 1/2x28
• Type: Adapter, LID piston core for GM-45/Blackside suppressors
• Caliber Compatibility: 9mm, .40 caliber, .45 ACP pistols (per suppressor system)
• Thread Pitch: 1/2x28
• Finish: Matte