The Gemtech Lunar 45 and GM-45 LID piston in M14.5x1LH (Gemtech part no. 12189) is an extra piston core for a GM-45 or Lunar 45 suppressor. Changing the piston lets one suppressor move between pistols with different thread patterns, including metric-threaded barrels. Gemtech lists the M14.5x1mm left-hand thread among its .40 caliber piston options. It weighs 2.71 ounces.

Key Specifications

• The thread is M14.5x1mm left-hand, a metric thread that turns the opposite direction.
• It is a LID piston core for the Lunar 45 and GM-45 suppressors.
• Gemtech lists the M14.5x1mm left-hand thread among its .40 S&W piston options.
• Weight is 2.71 ounces.

Frequently Asked Questions

What does a LID piston do? An extra LID piston core lets you change threads on a GM-45 or Lunar 45 so one suppressor can be used on pistols with different thread patterns.

What does the LH in the name mean? LH is left-hand thread direction, a feature of the M14.5x1mm thread rather than of any pistol.

Buy the Gemtech Lunar 45 and GM-45 LID Piston, M14.5x1LH

The right piston gets the suppressor onto your pistol, and this one covers the M14.5x1mm left-hand thread. Order it from our Lubbock, Texas gun shop for fast shipping, and browse more parts and accessories while you are here.