The Alpha Atlas provides a mount interface for suppressors with inside diameter threading of 1.125-28, like the Rugged Obsidian 9 and Obsidian 45. This is not recommend on suppressors that use the...
Rearden Alpha Atlas Thread Adapter, Compatible With Short Rearden Devices (fhd/mini/spb/rpb/r2s), For Suppressors With Inside Diameter Threading Of 1.125x28 (rugged Obsidian 9/45), Heat Treated...