The Carlson Cremator Choke Tube Ber Optima Hp 12ga combines advanced Triple Shot Technology with a mid-range constriction of .718 inches to deliver tighter, more dense patterns while reducing pellet deformation and stray flyers. This non-ported design features three graduated rings in the parallel section that create a smoother transition from bore to final constriction, offering a shorter shot string and enhanced consistency. You also get the benefits of an extended choke tube, including a 25% longer parallel section for improved density, plus wrench-less installation, quick removal, and muzzle protection. The Cremator series is offered in ported or non-ported configurations with a matte black finish and is crafted from premium 17-4 stainless steel, backed by Carlsons lifetime warranty. Combine the performance potential of todays premium ammunition with this breakthrough in choke technology, and youll understand why Carlsons CREMATOR line is making a significant impact on the field.