The Carlson Optima HP 12ga Sporting Clay Skeet choke tube is crafted from durable 17-4 stainless steel and precision machined to deliver better-than-standard patterns, featuring a 25% larger parallel section that promotes more consistent results across shoots. The chokes knurled end allows for quick, tool-free removal, while the laser-marked constriction on the end provides easy reference at the moment you need it. Built to perform with a wide range of shot typesfrom lead and steel to copper-plated, nickel, Hevi-Shot, shell combinations, and buckshotthese Sporting Clay chokes help you tune your pattern for clay targets and field use alike. The design emphasizes reliability and longevity, backed by a lifetime warranty, ensuring dependable performance season after season. Note that due to the chokes thin-wall construction, steel shot cannot be used in the Modified, IM, Full, or EF constrictions. The Carlson Optima HP 12ga Sporting Clay Skeet choke tube combines advanced metallurgy with thoughtful feature design to enhance consistency and accuracy on the range and in the field.