Iver Johnson Choke Tube 12 Gauge X-Full Mobil Choke Extended

The Iver Johnson Choke Tube is an extended replacement choke machined from steel and designed for 12 Gauge shotguns that use the popular Mobil thread pattern. It drops into any compatible Beretta/Benelli Mobil-style barrel and provides an extra full (X-Full) constriction for the tightest possible shot patterns at extended ranges.

X-Full is the most aggressive option in the Mobil choke family, ideally suited to applications where maximum pattern density is required at longer distances, such as waterfowl hunting with heavier loads or specialty long-range patterning work. The extended profile increases contact length between the shot column and the choke wall, helping to reduce pellet deformation and produce more uniform patterns downrange compared to flush-fit chokes.