The Rob Roberts RR3 Raptor Mobil 12 Gauge Choke is expertly crafted for hunters targeting long-range waterfowl such as geese and open water ducks. Its precision-engineered internal cuts ensure optimal pattern density enhancing your shooting accuracy when paired with the right loads. Constructed from durable 17-4 PH stainless steel this choke exemplifies years of innovation and advanced technology. Note that the RR3 Raptor Choke is designed for use in a single barrel delivering unmatched performance and reliability in the field.