The Iver Johnson choke tube for 12 gauge shotguns delivers reliable performance with a stainless steel construction that resists corrosion and stands up to demanding field use, making it a durable upgrade for hunters and shooters alike. This extended full choke tube is designed to maximize pattern density at practical hunting distances, helping you achieve tighter groups without sacrificing reliability, while the Mobil thread pattern ensures a secure fit on compatible receivers. Crafted from high-quality stainless steel, it combines strength with resistance to the elements, making it a practical choice for marsh, upland, and turkey applications where consistent, controlled shot placement matters. The extended design provides additional muzzle control and a longer constriction zone, enhancing accuracy and where appropriate, allowing you to tailor your shotguns performance to your preferred load and shooting style. With its precise 1.00 x 3.00 x 3.15 dimensions and standard 12 gauge compatibility, this choke tube supports a straightforward, drop-in upgrade that can help you optimize your shotguns effectiveness across a range of field scenarios.