Carlson's Choke Tubes CORE 12 Gauge Beretta Optima HP Choke Tube Close Range Black. Designed for all shot types and most sizes the CORE Series is perfect for a variety of outings - from hunting doves ducks pheasants geese and other small game to shooting trap and sporting clays. Available in Close Range (Improved Cylinder) Mid-Range (Modified) and Long Range (Full) these Core Series chokes can be shot with lead matrix loads steel duplex loads bismuth blends tungsten/TSS and hevi-shot making them as versatile as they come. Specifications for Carlson's Choke Tubes CORE 12 Gauge Beretta Optima HP Choke Tube: Manufacturer: Carlson's Choke Tubes Color: Black Fabric/Material: 17-4 Stainless Steel Gauge: 12 Choke Tube System: Beretta Optima HP Gun Make: Beretta Length: 3.75 in Package Contents: Carlson's Choke Tubes CORE 12 Gauge Beretta Optima HP Choke Tube Carlson's Choke Tubes 41053: CORE 12 Gauge Beretta Optima HP Choke Tube Close Range Black