The Rob Roberts RR3 Raptor Optima HP 20 Gauge Choke is expertly crafted for those seeking precision in long-range shooting. Specifically tailored for hunting geese and open water ducks this choke ensures superior pattern density when used with the appropriate loads. Constructed from high-quality 17-4 PH stainless steel its design is the result of extensive product development and cutting-edge technology. Please note that the Raptor choke is intended for use in one barrel of a shotgun only enhancing your firearm's performance with unmatched reliability and accuracy.