Description arlson's choke tubes are among the best in the business, and provide dependable service for a lifetime to their owners. High quality steel, and tight tolerances ensure the best possible patterns in all of your shotguns. Carlson's Extended Turkey Choke Tubes are high quality and easy to use, the knurled end allows for quickly changing chokes, should the need arise.PRODUCT DETAILS:12 Gauge Remington Rem-Choke Extended Turkey choke tube Turkey constriction .660" Diameter Stainless steel Not compatible with steel shot