Manufacturer: Carlson's 19871
Manufactured from 17-4 heat treated stainless steel to withstand heavy buffered turkey shotshells. These choke tubes produce extra tight patterns with copperplated and buffered lead turkey shotshells. These chokes produce dense patterns and carry a lifetime warrenty. Each choke extends approximately 1" from the end of the barrel. They have a matte blue finish. These chokes should not be used with steel shot.