Carlsons choke tube spt clays 12ga ported ic crio/crio+
-Benelli Crio Plus
-17-04 stainless steel
-25% longer parallel for tighter patterns
Other Features: Lead,copperplated,nickel, hevi-shot,bismuth,& tungsten may be shot with this tube.No steel larger than bb or faster than 1550 fps.715 dia.