The Carlson's Cremator Waterfowl choke tube is designed for hunters using a 20-gauge shotgun threaded for the Beretta/Benelli Mobil choke system. This exact Long Range model has a .587-inch exit diameter and an extended, ported configuration intended to produce dense, consistent patterns for waterfowl hunting. Carlson's Triple Shot Technology uses three graduated rings within the taper section to transition the shot charge more gradually from the barrel bore to the final constriction. This controlled transition is designed to limit pellet deformation and reduce stray pellets, helping more of the shot remain within the effective pattern. The extended design provides a parallel section that is 25 percent longer than a conventional flush tube, supporting tighter pattern development while also adding protection at the muzzle. Its exposed, knurled body allows convenient installation and removal by hand, making it easier to change or clean the choke without relying on a wrench under normal conditions. Precision machined from heat-treated 17-4 stainless steel, the tube has a durable black finish that complements most field shotguns. The Cremator series is engineered for use with steel waterfowl loads without shot-size or velocity restrictions, giving hunters flexibility when selecting appropriate ammunition for changing conditions and different waterfowl species. As with any choke and load combination, patterning the shotgun before hunting is the practical way to confirm point of impact and pellet distribution at the distances anticipated in the field. This single choke tube is made in the United States and is covered by Carlson's lifetime warranty. Compatibility is determined by the shotgun's choke-thread system rather than the firearm brand alone, so users should confirm that their 20-gauge barrel specifically accepts Beretta/Benelli Mobil-pattern tubes before installation.Specifications and Features: Long Range .587-inch choke diameter 20 gauge Beretta/Benelli Mobil compatibility Extended, ported configuration Triple Shot Technology with three graduated taper rings 25% longer parallel section Heat-treated 17-4 stainless steel construction Black finish No steel-shot size or velocity restrictions Quantity: 1 Made in the USA Brand: Carlson's Choke Tubes Series: Cremator Waterfowl Product Type: Extended Shotgun Choke Tube Manufacturer Part Number: 11483 UPC: 723189114831