The Iver Johnson 20 Gauge Modified Choke Tube (brand part no. 20GAMOD) delivers a middle-of-the-road pattern for all-around use, built for general upland hunting and standard clay presentations. Machined from stainless steel and cut with a Mobil thread pattern, it threads into any Iver Johnson shotgun built for Mobil-style choke tubes. The extended profile leaves a visible portion of the tube past the muzzle, making it easy to identify and remove without a wrench in most cases. A Modified constriction is the right call whenever your shooting calls for general upland hunting and standard clay presentations.

Key Specifications

• Sized for 20 Gauge Iver Johnson shotguns.
• Cut to a Modified constriction for middle-of-the-road pattern for all-around use.
• Built in an extended profile.
• Machined from Stainless Steel for corrosion resistance.
• Uses a Mobil thread pattern for compatible Iver Johnson shotguns.

Frequently Asked Questions

What shotguns does this choke tube fit? It fits 20 Gauge Iver Johnson shotguns built for Mobil-pattern choke tubes.

What is this choke tube best suited for? The Modified constriction suits general upland hunting and standard clay presentations.

Buy the Iver Johnson 20 Gauge Modified Choke Tube

Dial in the right pattern for your next hunt or clays round with a choke tube from Iver Johnson. Browse more options in our shotgun chokes category, and contact our Lubbock, Texas gun shop to order it as soon as it’s available to ship.