Carlson's Buckshot Tube -
Get tight patterns with 00 and 000 buckshot using Carlson's Buckshot Tube. Tube has been ported to reduce recoil and muzzle jump of large loads. The constriction optimize's patterns for both large and small loads. Machined out of 17-4 heat-treated materials, Tube can be used with lead, steel and Hevi-Shot® loads. Extends barrel by 1". Black finish. Not to be used with any steel shot larger than BB or steel shot faster than 1,550 fps.