Carlson's Buckshot Choke Tube 12GA Ported Stainless Steel is engineered for delivering tighter more consistent buckshot patterns with both 00 and 000 loads. Designed to extend about 1" out of the barrel this choke features precision constriction for optimized performance with both large and small loads. Crafted from 17-4 heat-treated stainless steel it supports lead steel and Hevi-Shot loads. Its durable high-quality construction includes a ported design to reduce recoil and muzzle jump. Compatible with Invector-Plus systems the .710 constriction ensures powerful downrange patterns. Note: Not compatible with steel shot larger than BB or faster than 1550 fps. An excellent upgrade for 12-gauge enthusiasts seeking tighter and reliable hit distribution.