The Carlsons Sporting Clays Choke Tubes for 12 ga Beretta/Benelli Mobil Skeet are precision machined from 17-4 stainless steel to deliver patterns that outperform standard tubes, with a 25% larger parallel section that promotes tighter, more consistent patterns. Knurled on the end for quick, tool-free removal and laser-marked with the constriction for easy reference, these choke tubes are designed to enhance performance at the sporting clay range while offering practical durability and a lifetime warranty. The construction and design allow use with lead, steel, copper-plated, nickel, Hevi-Shotshells, and buckshot, giving you versatile loading options for a variety of targets and disciplines. Steel shot larger than BBS should not be used in choke tubes tighter than Full Constriction, but these Sporting Clays Choke Tubes will typically produce denser patterns than flush mount tubes thanks to the longer parallel section. Built in the United States, Carlsons Sporting Clays Choke Tubes are an ideal choice for shooters who demand precision, reliability, and repeatable results on every clay target incident.