The GEMTECH PATROLMAN is part of a new line of Extreme Duty suppressors, these suppressors meet the stringent SOCOM Military standards and are optimized for use on short barreled, full auto firearms. The baffle stack has been constructed differently than in the past and an increase in Inconel gives this suppressor its hardcore properties. In addition to the hardcore inside, the outside has been updated to include the NEW logo endcap. Tested To SOCOM Military Standards For Barrels: 10.3in or Longer