Jebs Choke Tubes Head Hunter Black Nitride 20 Gauge Turkey Choke Tube Browning Invector Headhunter .560 Black Nitride JPCBN - 20C1/560. These Choke Tubes by Jebs Choke Tubes are constructed from 17-4 heat treated stainless steel for maximum durability that can handle the firepower of your weapon. The Jebs Head Hunter Black Nitride 20 Ga. Browning Invector Turkey Choke Tube creates a powerfully constricted shot so that you send more on your bird targets than ever before. Lubricate your weapon with the Jebs Head Hunting Black Nitride 20 Ga Browning Invector Turkey Choke Tube w/ Pop-Punch to perform at your true potential on your next hunt. Specifications for Jebs Choke Tubes Head Hunter Black Nitride 20 Gauge Browning Invector Turkey Choke Tube: Manufacturer: Jebs Choke Tubes Finish: Black Nitride Fabric/Material: 17-4 Heat Treated Stainless Steel Gauge: 20 Choke Tube System: Browning Invector (Standard) Gun Make: Browning Quantity: 1 Package Contents: Jebs Choke Tubes Head Hunter Black Nitride 20 Gauge Browning Invector Turkey Choke Tube None Jebs Choke Tubes JPCBN - 20C1/560: 20 Gauge Browning Invector Headhunter .560 Turkey Choke Tube Black Nitride