The White Wing Dove choke features Carlson's Exclusive TST (Triple Shot Technology) which results in reduced pellet deformation denser patterns and less flyers. Carlson's White Wing Dove choke is manufactured from 17-4 stainless steel and has been designed to produce the best patterns for dove hunters. For all ranges when hunting doves they guarantee the reliability and performance dove hunters want and deserve. All White Wing chokes are ported to help reduce recoil and muzzle jump. These chokes can handle steel lead Hevi-Shot and TSS as some public grounds stipulate shot composition.