Beretta OptimaChoke HP tubes stand up to the heat of competition. Manufactured from high strength steel and finished in a nickel-alloy coating, these chokes guarantee significant corrosion resistance and have the ability to withstand the rigors of steel shot. OptimaChoke HP tubes are fully interchangeable on all Beretta barrels threaded for OptimaChoke HP.*Fits: Beretta A300 Xtrema/A400 Xcel/A400 Xplor/A400 Xtreme/690/692/DT11/SV10