Carlson's Choke Tubes Sporting Clays 28 Gauge Beretta/Benelli Mobil Choke Tube Turkey Choke .520 Stainless. These choke tubes produce extra tight patterns with copper plated and buffered lead turkey shotshells. These chokes produce dense patterns and carry a lifetime warranty. Carlson's Extended Turkey Chokes extend approximately 1" from the end of the barrel. These chokes come with a matte black finish. Carlson's has found the .665 Extended Turkey Choke Tube to produce the most consistent patterns with turkey loads. Card shooters try the .640 constriction. Carlson's Extended Turkey Choke Tubes have a 1.050" parallel section to produce the optimum pattern with y Carlson's shotgun. No Steel Shot Larger than #4 may be used in Carlson's Turkey Choke Tubes Specifications for Carlson's Choke Tubes Sporting Clays 28 Gauge Beretta/Benelli Mobil Choke Tube: Manufacturer: Carlson's Choke Tubes Color: Stainless Fabric/Material: Heat-Treated 17-4 Stainless Steel Gauge: 28 Choke Tube System: Beretta/Benelli Mobil Choke Type: Turkey Diameter: 0.52 in Gun Make: Benelli Beretta Quantity: 1 Condition: New Country of Origin: USA Features of Carlson's Choke Tubes Sporting Clays 28 Gauge Beretta/Benelli Mobil Choke Tube Extended Choke Blued Finish For use with Lead Hevi-Shot Bismuth and Steel shot smaller than #4 Fits 28ga Beretta/Benelli Mobil choke system Package Contents: Carlson's Choke Tubes Sporting Clays 28 Gauge Beretta/Benelli Mobil Choke Tube Carlson's Choke Tubes 15549: Sporting Clays 28 Gauge Beretta/Benelli Mobil Choke Tube Turkey Choke .520 Stainless