The Buck Kicker chokes are engineered to offer superior control over buckshot loads, ensuring consistent and reliable performance, they can accommodate shot sizes ranging from 000 - #4 buck. Finished in matte black and now offered in camouflage, these chokes are compatible with most 12, 20 and 10 Gauge shotguns. With the proper choke and shot size combination, Buck Kicker chokes deliver a consistent 20 inches - 22 inches pattern at 40 yd, with effective patterns extending out to 60 yd. While they perform well with all types of buckshot, copper plated pellets yield the best results. Kick's Buck Kicker extended choke for buckshot, designed with a diagonally ported configuration to reduce recoil, ensuring more manageable shooting and increased accuracy during rapid follow-up shot Conical/parallel internal configuration for optimized gas flow and improved performance Easily installs and removes by hand No special wrench or tool needed