Iver Johnson Skeet Choke Tube Features The Iver Johnson Skeet Choke Tube is machined from stainless steel and set to a skeet constriction producing the wide open pattern needed to break fast close-range clay targets consistently. Its Mobil choke style thread pattern allows it to install directly into compatible 20 gauge barrels without additional fitting work. Stainless steel construction resists corrosion from repeated exposure to the elements at the range or in the field. This combination of material and constriction makes the tube well suited to high-volume skeet shooting. The extended profile protrudes slightly past the muzzle giving shooters an easy grip point for hand-tightening or removal between rounds. This design also makes it simple to visually confirm which choke constriction is currently installed before stepping to the line. Because it uses the widely available Mobil thread pattern it fits a range of shotguns built around that system. The Iver Johnson Skeet Choke Tube is a dependable option for shooters focused on close-range clay performance. Iver Johnson Skeet Choke Tube Specifications Manufacturer: Iver Johnson Model: Skeet Choke Tube Gauge: 20 GA Choke: Skeet Profile: Extended Material: Stainless Steel Thread Pattern: Mobil Available At: GrabAGun