The Gemtech Lunar 45 and GM-45 Female 3-Lug Mount (brand part no. 12199) is the rear mount that lets a Lunar 45 or GM-45 suppressor sit on a 3-lug barrel. Gemtech makes it to screw into the rear of all LUNAR-45, GM-45 and older BLACKSIDE suppressors. Once installed, the suppressor can be used on a 9mm HK MP5 barrel with 3-lug, as well as on other barrels modified with Gemtech male 9mm 3-lug adapters. For anyone running a .45 suppressor on a 3-lug host, it is the mount that makes that possible.

Key Specifications

• The mount is a female 3-lug design, which receives a 3-lug barrel interface.
• It fits the Lunar 45, so the same mount works on current Lunar 45 suppressors.
• It also fits the GM-45 suppressor.
• It fits older Blackside suppressors as well, which extends it to earlier Gemtech cans.
• The host is a 9mm HK MP5 barrel with 3-lug, the platform this mount is specified for.
• It also works on barrels modified with Gemtech male 9mm 3-lug adapters, giving other hosts the same interface.
• Installation is by screwing the mount into the rear of the suppressor.

Frequently Asked Questions

Which suppressors does this 3-lug mount fit? It screws into the rear of all Lunar 45, GM-45 and older Blackside suppressors.

What barrels can I use it on? Use it on a 9mm HK MP5 barrel with 3-lug, or on other barrels modified with Gemtech male 9mm 3-lug adapters.

Is this the mount for the Lunar 9 or GM-9? No. This is the Lunar 45 and GM-45 mount; Gemtech lists a separate female 3-lug mount for the Lunar 9 and GM-9.

Buy the Gemtech Lunar 45 and GM-45 Female 3-Lug Mount

A 3-lug barrel changes how a suppressor mounts, and this part is how the Lunar 45 and GM-45 line gets there. Check out more suppressor parts and accessories and order from our Lubbock, Texas gun shop for fast, insured shipping.