The Code Black Duck choke tube is engineered for unmatched versatility across a wide range of hunting environments from flooded timber and waterfowl fields to dove hunts and turkey woods. Designed with a patented stud ring system, it significantly shortens shot strings to deliver tighter, more effective patterns and increased impact on target. Built from premium materials and precision-crafted for performance, this choke tube is a reliable choice for hunters seeking consistency at extended ranges. Product Details Material: 17-4 hardened stainless steel Finish: Bronze Titanium (Titanium Nitride coating) Constriction: No constriction Model Variant: Universal Series: Code Black Product Features Extremely versatile design for waterfowl, dove, and turkey hunting Patented stud ring design shortens shot string for tighter patterns Delivers performance similar to a full choke with 2 " 3" shells Effective range of 40 to 60 yards, with extended capability for experienced shooters Constructed from aircraft-quality stainless steel for durability Titanium Nitride coating enhances wear and corrosion resistance Heat-treated for optimal performance and longevity Ported design for improved shot control