The Avian-X Turkey Choke Tube is loaded with features to give you an optimum shot on your next bird. This choke allows for maximum kinetic energy at extended ranges and straight rifling to focus more pellets on the target. Made of a high strength tempered steel, this choke tube will offer maximum durability with high powered loads and is rated for steel, tungsten, bismuth, and lead shot.FeaturesDense / even patterns and maximum kinetic energy at extended rangesUnique internal groove technology helps separate pellets from the wadStraight rifling stops wad from spinning & focuses more pellets on target Radical porting keeps gasses away from the shot stringCastle cuts on the crown lock choke tight in barrel and provide exhaust channels for gasses to quickly escapeRated for steel, tungsten, bismuth and leadHigh strength tempered steel for maximum durability with high powered turkey loads High performance black PVD finish for smoother shots & easier cleaningPolished end face for better s...