The Gemtech Lunar 9 and GM-9 LID with piston in 1/2×28 is a Linear Inertial Decoupler for the GM-9 and MULTIMOUNT suppressor line (brand part no. 12177). Gemtech states the LID is required for all handguns that use a Browning-type action, such as Glock, SIG and HK pistols. It lets the pistol cycle properly when the weight of the suppressor hangs on the end of the barrel. It threads 1/2×28 and includes the piston. It is not compatible with the Trinity or Vortex suppressors.

Key Specifications

• The thread is 1/2×28, which must match the threaded barrel on the pistol.
• The part is a Linear Inertial Decoupler, which lets the pistol cycle under the added suppressor weight.
• It is made for the GM-9 and MULTIMOUNT suppressors, and is listed for the Lunar 9 as well.
• It includes a piston, as the product name states.
• It is required for Browning-type action handguns such as Glock, SIG and HK.
• It is not compatible with Trinity or Vortex suppressors, so confirm the suppressor first.

Frequently Asked Questions

Which pistols need a LID? Gemtech states the LID is required for all handguns that use a Browning-type action, such as Glock, SIG and HK pistols.

Why is a decoupler needed? It allows the pistol to cycle properly when the weight of the suppressor is added to the end of the barrel.

Which suppressors is it compatible with? It is intended for the GM-9 and MULTIMOUNT suppressors and is listed for the Lunar 9. It is not compatible with Trinity or Vortex suppressors.

Buy the Gemtech Lunar 9 and GM-9 LID with Piston, 1/2×28

A pistol that tilts its barrel needs the right decoupler, and this one is matched to the Gemtech line. Order it from our Lubbock, Texas gun shop for fast, direct shipping, and see more suppressor parts and accessories while you are here.