Patternmaster Code Black Duck Waterfowl Choke Tube Remington Rem Choke 12 Gauge

CODE BLACK DUCK tubes will extend out the end of your barrel 1" and have an effective range out to 60 yards. You will see patterns similar to a full constriction choke on paper, but because of the patented "stud ring" inside the tube, there is a much shorter shot string.Specifications and Features:Approved for Steel Shot: YesCartridge: 12 GaugeConstriction: DuckExtended: NoFinish: BronzeMaterial: 17-4 PH Stainless SteelPorted: YesRifled: NoThread Pattern: Remington Rem-Choke