Gemtech GM-45 Piston Lid Mk23 | 16x1mm RH

The Gemtech GM-45 Piston Lid Mk23 is a rear piston lid designed for GM-45, Lunar-45 and Blackside-45 lids. It uses an M-style thread pattern to interface with compatible mounts and can be installed in the field without tools. The part is intended for use with compatible sound-reduction systems and is noted as fitting additional pistol platforms.

Product Specifications

• The product type is listed as Accessory-Silencer Accessories.
• The unit is compatible with GM-45, Lunar-45 and Blackside-45 lids.
• The item name is provided as GM-45 Piston Lid Mk23.
• The NFA thread pattern is 16x1mm RH.
• The product can also be used on 40 caliber and 9mm pistols according to manufacturer notes.
• The design is field-installable without the use of tools.
• The package length is 5.8.
• The package width is 3.9.
• The package height is 1.7.
• The listed weight is 0.16.
• An additional feature lists Fits HK Mk 23 Pistols.
• Another feature is listed as GM-45/Blackside Piston.
• The UPC is 609224345845.

Built to serve as a direct-service replacement piston lid, this part focuses on serviceability and compatibility with Gemtech’s GM-series lids. Its thread pattern and tool-free installation make it practical for armorers and experienced users maintaining compatible sound-reduction systems for range training and precision shooting applications.