Beretta Optima-Choke HP tubes stand up to the heat of competition. Manufactured from high strength steel, these chokes guarantee significant corrosion resistance and have the ability to withstand the rigors of steel shot. Optima-Choke HP tubes are fully interchangeable on all Beretta barrels that are threaded for Optima-Choke HP. These choke tubes are designed for 12 gauge shotguns with the optimachoke HP system.