The Orthrus 22 is the only .22 caliber offering from Torrent, but thats because its the last .22 suppressor youll ever need. Rated up to 17 HMR, the blast baffle stack on the Orthrus 22 is made from Titanium Grade 5 (Blast baffle) 6061-T Aluminum (tube & baffle core), with an aluminum tube.Features :22 Cal up to 17HMRAluminum Construction