Iver Johnson 12 Gauge Rifled Extended Mobil Choke Tube

The Iver Johnson 12 Gauge Rifled Extended Mobil Choke Tube (brand part number 12GARIFLED) gives Mobil-pattern 12 gauge shotguns a dedicated rifled bore for slug accuracy. Iver Johnson machines this choke from steel and cuts the internal rifling to stabilize sabot and rifled slugs the way a smoothbore barrel or standard choke constriction cannot. The extended profile protrudes past the muzzle for easy hand installation and removal, and the Mobil-pattern threads mean it drops straight into any shotgun cut to that choke system. It’s a straightforward upgrade for hunters and slug shooters who want tighter, more consistent slug groups without buying a dedicated rifled barrel.

Key Specifications

• Built for 12 gauge Mobil-pattern shotguns, matching the standard 12 gauge bore.
• Cut with a rifled bore, imparting spin to sabot and rifled slugs for tighter accuracy.
• Uses the Mobil choke thread pattern, so it installs directly into Mobil-cut barrels.
• Machined from steel for durability under repeated slug loads.
• Finished in an extended profile, letting the tube protrude past the muzzle for tool-free hand installation.
• Overall length runs approximately 4 inches in its extended configuration.

Frequently Asked Questions

What loads is this choke designed for? The rifled bore is built specifically for sabot and rifled slug loads, not standard shot shells.

Will it fit any 12 gauge shotgun? It fits shotguns cut for the Mobil choke thread pattern; check your barrel’s choke system before ordering.

Do I need a wrench to install it? No, the extended design is sized for hand installation and removal without a separate choke wrench.

Buy the Iver Johnson 12 Gauge Rifled Extended Mobil Choke Tube

Tighten up your slug groups without swapping barrels. Order it from our Iver Johnson lineup, part of our shotgun chokes selection, at our Lubbock, Texas gun shop for fast, direct shipping.