Carlson's Turkey Extended Choke Tube for 12 ga Winchester .640, Black - 19894

Extended choke tube designed for 12-gauge Winchester shotguns with .640" diameter. Manufactured from 17-4 heat-treated stainless steel with matte blue finish and extends approximately 1" from the barrel end. Features a 1.050" parallel section for optimized shot patterns with lead, copperplated nickel, Hevi-Shot, or Bismuth ammunition, and includes a free choke tube wrench for installation.