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Patternmaster Code Black Duck Choke Tube
Offers patterns like a full constriction choke
Stud ring creates a shorter shot string
Helps increase energy downrange
Non-reflective bronze titanium coating
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Product DescriptionPatternmaster's Code Black Duck Choke Tube will extend the end of your barrel 1" and has an effective range out to 60 yards. Offers patterns similar to a full constriction choke on paper with a 2-1/2" or 3" shell and a modified choke with a 3-1/2" shell. Patented "stud ring" inside the tube creates a much shorter shot string, putting more shot on target all at once for high downrange energy. Works with steel or other non-toxic ammunition as well as lead. Pick your favorite shot size from 8 to 000. Ported design with non-reflective bronze titanium coating. Made of Carpenter Custom 630 aircraft quality 17-4ph stainless steel and are heat treated for amazing durability.