Gemtech MM9 LID | 1/2-28 Adapter

The Gemtech MM9 LID 1/2-28 is a threaded piston core designed to change the mount threads on a TUNDRA or MULTIMOUNT LID to the U.S. standard 1/2-28 pattern. It installs in the field without tools and is intended to let one suppressor interface with pistols or carbines that use the 1/2-28 thread. The LID piston core is a single threaded replacement part; the LID body, spring and piston block shown in illustrations are not included.

This LID piston core is required for handguns that utilize the Browning-type action (for example: Glock, SIG, HK) when using the MM9/TUNDRA LID system. It is not compatible with TRINITY or VORTEX mounts, and certain AR-15 9mm configurations may require additional parts (piston blocking tube) to function with other thread standards.

Typical applications include range training with a single suppressor across multiple host firearms and competition shooting where quick thread-change capability is desirable. The part is intended for use as a mounting adapter within suppressor multimount systems.

Product Specifications

• The product type is Mount.
• The subcategory is Suppressor Accessories.
• The model is listed as LID.
• The advertised thread/description is 1/2X28.
• The NFA thread pattern is 1/2×28.
• The color is Black.
• An additional feature listed is Multimount Adapter.
• An additional feature note is NOT COMP w/ TRINITY OR VORTEX.
• The weight is 0.25.
• The package length is 5.8.
• The package width is 3.9.
• The package height is 1.6.
• Can be disassembled: False.
• Can dropship: True.
• UPC: 609728888954.

This threaded LID piston core provides a straightforward, field-serviceable way to adapt a Gemtech MM9/TUNDRA LID for U.S.-standard 1/2-28 pistons. It is a focused parts-level solution for shooters who need to reconfigure a multimount system without replacing the entire LID assembly.