Beretta optima-choke 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.Optima-choke hp tubes are fully interchangeable on all beretta barrels threaded for optima-choke hp.Type: FlushGauge: 20 GaugeConstriction Type: Improved CylinderConfiguration: Optima HPFinish: SilverConstrictiondiameter: .535Chokes Included: 1Recommended For: 50+ ydsMaterial: SteelPorted: No