Flush mount, stainless steel Carlson's Choke Tubes are compatible with shotguns using Win-Choke thread size and can handle magnum and steel shot loads.
These choke tubes are offered in 12 and 20 gauge with .812"-32 tpi or .687"-32 tpi respectively, suitable for various shotgun brands.
Specific constrictions like X-Full and Turkey are designed for use with Lead and Hevi-Shot only, while Tru™-Choke Thinwall tubes should be used exclusively with 2¾" Lead Shot loads.