The Rob Roberts Gun Works 200323 Biz Raptor Optima HP 20 Gauge 17-4 PH Stainless Steel delivers precision engineering for serious shotgunners, pairing bismuth-based shells with the RRaptor BIZ choke to maximize performance and consistency. Built from durable 17-4 PH stainless steel, these shotgun choke tubes exemplify years of product development and advanced technology, offering the strength and corrosion resistance needed in demanding field and range conditions. The Biz Raptor Optima HP is designed to pair seamlessly with bismuth shot, delivering improved constriction and pattern integrity for tighter, more predictable where-improved hits. Note that over-shotguns can accommodate a RRaptor choke in only one barrel, a design choice that ensures reliable performance without compromising balance or handling. This choke tube represents Rob Roberts Gun Works commitment to high-precision accessories within the shotgun parts and choke tubes category, providing enhanced performance for 20 gauge platforms while maintaining compatibility with the Optima HP line. Ideal for upland birds, turkey, and waterfowl applications, it helps shooters optimize their load selection and achieve reliable, consistent patterns across varied hunting scenarios.