The Diligent Defense Ti Direct Thread Adapter is a component that attaches a suppressor to a firearm by screwing it directly onto the barrel’s threads. It is made of titanium for durability and light weight and uses the industry-standard 1-3/8″x24 TPI HUB/Bravo thread pattern, which is compatible with many suppressors and accessories. Its primary function is to provide a secure, simple, and minimalist mounting solution, adding minimal length to the suppressor’s profile.

From Diligent Defense Co: Direct thread adapters. These are simplistic and light as shit. -Industry standard 1.375″x24tpi (Fits all of our cans plus many others with the same thread) -Machined from 6-4 titanium. -Adds 1/4″ to the overall length of your can.