BudsGunShop.com - Verify thread and pitch on Rugged Obsidian 3-Lug

This 3 Lug Mount replaces the piston assembly in your Obsidian9/45™, allowing you to attach the Obsidian9™ or Obsidian45™ to 3 lug compatible firearms. This mount is designed to be internal so that your overall firearm length is as short as possible. Using a 3 Lug Mount allows you to quickly attach/detach your suppressor to fixed barrel firearms, without having to worry about suppressor walk-off.
Note: This is the suppressor mount only. To attach, your firearm must have an integral 9mm 3 lug or a 9mm 3 Lug Adapter.

Hi Kurt and welcome. Rugged Suppressor 3 Lug Mount (Black) Specifications and Features:
Rugged Suppressors OA001
3 Lug or Tri Lug Adapter
Replaces Piston Assembly of your Obsidian
Requires the Barrel to have integral 3 Lug or 9mm 3 Lug adapter already installed
Black
Fits:
Rugged Suppressor Obsidian 45 Suppressors
Rugged Suppressor Obsidian 9 Suppressors
Detail video here : youtube.com/watch?v=Ofy7GihpjHU