Patternmaster Code Black Goose 12 Gauge Hunting Shotgun Accessory Durable 17-4 Stainless Steel Choke Tube | Effective Range Up to 70 Yards | for Beretta Optima HP (5473) Optics High Torque Zoom Ring

High Torque Zoom Ring

These products contain a synthetic base oil in a lithium complex thickener along with a Molybdenum Disulfide system

but can also be used adequately for recreational swimming and snorkeling

Snorkeling and Freediving equipment

Lithium grease

Patternmaster Code Black Goose 12 Gauge Hunting Shotgun Accessory Durable 17-4 Stainless Steel Choke Tube | Effective Range Up to 70 Yards | for Beretta Optima HP (5473) Optics High Torque Zoom RingPatternmaster's Code Black Goose tubes will extend out the end of your barrel 1 1 2 inches and has an effective range out to 70 yards. The difference between the Patternmaster Code Black Duck and Patternmaster Code Black Goose is the length the tube sticks out the barrel. (Duck=1" vs. Goose=1 ") The added length is to accommodate a 3 " shell and still achieve a Full pattern. You will see a pattern similar to a Full constriction choke on paper, but