The Carlson's Delta Waterfowl Extended Choke for 20 gauge Long Range Extended in 17-4 stainless steel delivers precision-engineered performance for waterfowl and upland hunters who demand extended patterns and dependable durability from a trusted American-made choke tube. Crafted by Carlson in the United States, this extended choke tube is designed to maximize long-range pattern density while maintaining consistent constriction across a full range of shot sizes, making it a versatile choice for demanding field conditions. The black finish not only provides a discreet, corrosion-resistant surface but also helps minimize reflections in wet, soggy cover and low light, helping you stay ready as birds push across open water or tight coveys. With its long-range design, shooters can confidently dial in tighter patterns at extended distances, improving hit probability on fast-flying waterfowl or wary field birds without sacrificing reliability. Built to withstand field use, the 17-4 stainless steel construction delivers strength and longevity, ensuring repeatable performance season after season. This choke tube integrates smoothly with compatible 20 gauge shotguns, offering a straightforward upgrade that enhances range and pattern control for serious hunters.