The Rob Roberts RR3 Raptor Invector Plus 20 Gauge Choke is crafted for precision and performance in long-range shooting scenarios. Ideal for hunting geese and open water ducks this choke offers superior pattern density thanks to its expertly designed internal cuts. Constructed from high-grade 17-4 PH stainless steel it promises durability and reliability. Years of innovation and development have gone into this product ensuring it meets the highest standards of shooting technology. Please note that this choke is designed for use in one barrel only enhancing your shotgun's effectiveness in demanding conditions.