Crafted for the discerning hunter the Carlsons 20 Gauge Winchester Long Range Choke Tube offers superior performance with its high-quality 17-4 stainless steel construction. Engineered for precision this choke tube delivers tighter and denser patterns thanks to its extended parallel section. The black finish adds a sleek look while the knurled end ensures effortless removal. Designed for the 20 Gauge Invector configuration this choke features a constriction diameter of .590 providing unmatched accuracy. Ideal for use with steel shot it promises exceptional results in the field making it a must-have for serious waterfowl hunters.