The Carlson's Flush Choke Tube for Remington 20ga .620 from Carlson is crafted in 17-4 heat treated stainless steel for reliable performance in Remington (Rem Choke) shotguns. Designed to deliver consistent constrictions across a range of hunting and shooting scenarios, this choke tube accepts steel, lead, and Hevi-Shot in all configurations, with important cautions: no steel shot larger than #BB or speeds exceeding 1550 fps should be used in choke tubes tighter than full, and no steel shot larger than #4 may be used in our Turkey Choke Tubes. Built to endure demanding field use, Carlson backs these choke tubes with a Lifetime Warranty and proudly manufactures them in the USA. Ideal for upland and waterfowl applications where dependable, repeatable patterns matter, the Flush design offers a sleek, snag-free profile that slips easily into the barrel while preserving optimal shot strings. Whether refining your turkey or waterfowl setup or replacing worn chokes, this Carlson choke tube for Remington 20ga delivers proven performance, durability, and peace of mind for serious shooters and hunters alike.