Crafted from durable 304 high-stress stainless steel, these precision Rifled Choke Tubes are designed to enhance accuracy for smooth bore barrels. Each tube extends between .625 and 1.3 inches beyond the barrel, depending on the specific firearm model and features a right hand rifle twist with a 1:35 ratio for improved shot stability. With a groove diameter of .730 inches for 12 Gauge, these Choke Tubes deliver reliable, tighter groups. Finished in matte black and backed by a lifetime warranty, these Rifled Choke Tubes are the ideal choice for those seeking greater accuracy and performance from their smooth bore shotgun.