Carlson's Delta Waterfowl Crio Plus Mid Range Choke Tube

Highly effective specialized choke designed specifically for steel shot!

Also works well with lead, copper, and HeviShot pellets.
Tighter and more consistent shot patterns than conventional chokes.
Longer than average cylindrical muzzle section improves patterns.
Lifetime manufacturer's warranty.

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