What sets the Mask apart is its marvelous performance and the ease with which it can be disassembled. It provides balance of performance, weight and extraordinary cleaning intervals that are unmatched by the competition. It features a blend of titanium and 17-4 PH stainless steel construction for direct thread applications. Compatible with: 22 Hornet/5.7x28mm/17 HMR/17 WSM/22 Mag NOTE: Muzzle Brake is not included with Suppressor.