Carlson's Delta Waterfowl Mobilchoke Long Range interchangeable choke

Highly effective specialty choke designed specifically for steel shot!

Also works well with lead, copper, and HeviShot pellets.
Denser and more uniform shot patterns than traditional chokes.
A longer than usual cylindrical muzzle improves shot patterns.
Lifetime manufacturer warranty.

Made from 17-4 stainless steel through precision machining. Matte black finish, choke's muzzle exterior is textured.
Available in Mid Range and Long Range versions. Mid Range suitable for shooting distances under 35 meters, and Long Range for distances over 35 meters.
Restrictions for steel shot (Long Range): max. shot size 4.57 mm (BB), max. velocity 470 m/s. Mid Range version has no restrictions for steel shot.