Carlson's Bone Collector Invector DS Turkey Choke delivers precision and power for seasoned turkey hunters. Designed for 12GA shotguns it features a super-tight constriction and a longer taper section to ensure fewer flyers and more pellets on target. It works seamlessly with all turkey-hunting ammunition from tungsten to TSS offering unmatched versatility. Manufactured from durable 17-4 heat-treated stainless steel it boasts a non-reflective matte black finish for low-profile performance. Pattern-tested to perfection with shot sizes 4 through 10 this choke ensures optimal accuracy and reliability every hunt. Constriction diameter of .665 and Invector-DS compatibility provide dependable repeated results in the field.