Jebs Choke Tubes Upland and Windshooting 20 Gauge Choke Tube Beretta A-400 Optima H.P. .580 Modified Upland Tube Matte Stainless JPC - 20H2/580. These Choke Tubes built by the experts at Jebs Choke Tubes are made out of 17-4 stainless steel that's rugged and lightweight but can also take the abuse of steel shot so they're a perfect choice for shooting doves and quail at varying distances. The Jebs Choke Tubes Beretta A400 Upland and Windshooting Choke Tube has a matte black finish that doesn't reflect sunlight so that birds cannot see your beautiful shot. Enhance the quality of your shot with the Jebs Choke Tubes Beretta A400 Upland and Windshooting Choke Tube. Specifications for Jebs Choke Tubes Upland and Windshooting 20 Gauge Beretta A-400 Optima H.P. Choke Tube: Manufacturer: Jebs Choke Tubes Finish: Matte Fabric/Material: 17-4 Heat Treated Stainless Steel Gauge: 20 Gun Make: Beretta Gun Model: Beretta A400 Package Contents: Jebs Choke Tubes Upland and Windshooting 20 Gauge Beretta A-400 Optima H.P. Choke Tube Jebs Choke Tubes JPC - 20H2/580: 20 Gauge Beretta A-400 Optima H.P. .580 Modified Upland Tube Matte Stainless