The Iver Johnson 20GA rifle-style choke tube combines rugged stainless steel construction with precision threading for reliable, long-lasting performance in your shotgun, delivering versatile rifled choke capabilities for improved slug and sabot performance. Built as an extended choke tube with a Mobil thread pattern, this accessory integrates seamlessly with compatible 20 gauge shotguns, offering a durable solution that resists corrosion while maintaining tight, consistent bore alignment. The rifled choke design helps stabilize projectiles for improved accuracy at varying distances, making it a practical addition for hunters and target shooters who demand dependable performance from their shotgun setup. Its compact dimensions of 0.95 x 1.00 x 4.00 inches ensure a snug, unobtrusive fit without altering balance or line of sight, while stainless steel construction provides strength and longevity under field use and repeated heat cycles. Ideal for enthusiasts seeking an enhanced long-range option in their shotgun accessory lineup, this Iver Johnson choke tube supports a range of slugs and specialty loads, enabling more precise field performance and enhanced versatility for diverse hunting scenarios.