Shotgun Choke Tube: This product is a removable shotgun choke tube designed for the compatible shotgun gauge and thread system identified in the title and specifications. It installs at the muzzle of a compatible shotgun barrel and is used to manage the shot pattern for its intended shooting application.Code Black Duck — engineered to deliver consistent, reliable performance and even patterns with a shorter shot string. This choke offers an effective range of 40-60 yards. On paper you'll see a pattern similar to an Full‑like choke, but due to the patented stud ring, the shot string is dramatically shorter. That means more pellets on target simultaneously for cleaner kills. Safe with lead, tungsten, bismuth, steel, non‑toxic. Comes in Bronze finish and is Ported. Gauge: 12ga Constriction (nominal): 0.715 in Effective Range: 40-60 Porting: Ported Always pattern test your firearm and follow manufacturer guidelines for choke use and ammunition compatibility.
