Manufacturer: Carlson Championship Calls, LLC 10105
Manufactured from 17-4 stainless steel and hardened. For use with lead shot in all constrictions. Steel shot larger than #BB should not be used in any choke tighter than modified, BB and smaller size steel shot may be used through full choke constriction.
Interchangeable with Winchester, Mossberg, Browning Invector, Weatherby and Savage 20 gauge shotguns.