Iver Johnson Choke Tube 28ga. - Improved Modified Mobil Choke

The Iver Johnson Choke Tube 28ga. Improved Modified Mobil Choke is a precision-engineered interchangeable choke system designed for 28-gauge shotgun users who demand tight, consistent patterns in the field. Built for hunters, sport shooters, and law enforcement personnel operating 28-gauge shotguns, this choke tube delivers the Improved Modified constriction that balances energy retention with adequate shot spread for medium-range engagements. The Mobil choke system represents generations of shotgun refinement, allowing shooters to quickly adapt their barrel performance without tools or permanent modifications.

The Improved Modified constriction tightens the shot pattern compared to a full choke, providing superior range while maintaining adequate spread for moving targets—a critical balance in tactical and hunting scenarios. Manufactured to exacting tolerances, this choke tube features Mobil choke-style threads that engage securely in compatible barrels, ensuring zero movement during firing and consistent shot placement across multiple rounds. The compact 0.04-pound design minimizes inertia and swing weight, preserving the natural handling characteristics of your shotgun. The tube's hardened steel construction withstands repeated use and harsh field conditions, making it a reliable component for professionals and dedicated marksmen.

This Iver Johnson choke tube is ideal for 28-gauge shotgun platforms equipped with Mobil choke threads, including classic Iver Johnson models and compatible third-party barrels. Installation is straightforward—simply hand-screw the tube into the barrel until hand-tight; avoid over-torquing to prevent thread damage. Law enforcement, sport shooters, and upland hunters benefit most from carrying multiple chokes, allowing pattern optimization for different ranges and shot types without changing barrels. Proper maintenance—occasional cleaning and inspection for thread wear—ensures long-term reliability and performance.