The Rob Roberts Gun Works 200290 Biz Raptor Invector 20 Gauge 17-4 PH Stainless Steel delivers precision-engineered performance for turkey and upland hunters who demand consistency in their choke systems. Crafted by Rob Roberts Gun Works, this RRaptor BIZ choke is designed to optimize bismuth shot, a popular choice across the industry, by locking in a tight, uniform pattern when paired with the Biz Raptor shell lineup. Built from 17-4 PH stainless steel, these choke tubes embody durability and corrosion resistance, reflecting years of development and innovation to withstand demanding field conditions. Although the RRaptor choke is compatible with single-barrel setups on over-shotguns, its streamlined design focuses on delivering reliable, long-lasting performance in a single optimized barrel. The 20 gauge configuration provides versatility for a wide range of shot sizes and hunting scenarios, while the stainless construction helps maintain consistent performance shot after shot. This choke tube stands as a robust addition to the RRaptor series, offering enhanced control and improved shot placement for successful, ethical harvests in the field.