Gemtech GM-45 Rear Piston Lid (16x1mm LH)

Description

This is a replacement rear piston lid designed for Gemtech GM-45-series suppressor LIDs. It is specified for use with GM-45, Lunar-45 and Blackside-45 LID assemblies and lists compatibility with HK USP 45 pistols. The part is described as installable in the field without tools and is noted as usable on 40 caliber and 9mm pistols in addition to .45 platforms.

Key Specifications

• Manufacturer: Gemtech.
• Model: GM-45 Rear Piston Lid.
• Compatible LIDs: GM-45, Lunar-45 and Blackside-45.
• NFA thread pattern: 16x1mm LH.
• Firearm compatibility note: Fits HK USP 45 pistols.
• Alternate use: 40 caliber and 9mm pistols (per manufacturer text).
• Field installable: Installable in the field without the use of tools.
• Shipping weight: 0.15.
• Product type: Accessory-Silencer Accessories.
• Package dimensions (L×W×H): 5.8 × 3.8 × 1.5.

Compact and purpose-built, this piston lid serves as a direct service component for GM-45-series LIDs and offers straightforward, tool-free field installation. Its thread pattern and stated pistol compatibility make it a practical replacement part for users maintaining GM-45, Lunar-45 and Blackside-45 assemblies who value simple serviceability and compatibility across multiple platforms.