The Carlson's Cremator Ported Choke Tube for 12-gauge Remington shotguns features innovative Triple Shot Technology (TST) for superior pattern density and reduced pellet deformation making it extremely effective for waterfowl hunting throughout the entire season.Carlson's Cremator Ported Choke Tube - 12 Ga Remington ThreadTriple Shot Technology (TST) with three graduated rings in taper sectionAvailable in close mid and long range constrictionsExtended design with 25% longer parallel section for tighter patternsPorted configuration for reduced recoil and muzzle jumpWrench-less installation and quick removalNo size or speed restrictions with steel shotPrecision-machined from heat-treated 17-4 stainless steelMade in USA with lifetime warrantyPerfect for waterfowl hunters seeking maximum pattern density and consistency. The extended ported design provides easy installation muzzle protection and enhanced shooting performance for all types of waterfowl hunting conditions.