The Rob Roberts Gun Works 200137 T2 Triple Threat Invector 20 Gauge 17-4 PH Stainless Steel choke tubes are crafted for mid-range performance, delivering reliable patterns for flooded timber mallards, dove, most sporting clays targets, and 16 yard trap, making them a versatile choice for demanding field and range conditions. These choke tubes are the culmination of years of product development and innovations, utilizing the highest advanced technology available to ensure precision, durability, and consistent performance with every shot. Constructed from 17-4 PH stainless steel in the U.S., they offer exceptional corrosion resistance and strength, maintaining alignment and stability under repeated use and demanding environments. The 20 gauge design pairs with a broad spectrum of shot sizes and loads, enabling shooters to optimize choke performance across a variety of scenarios without sacrificing reliability. Whether youre hunting in timber, chasing upland targets, or working the trap line, this Invector choke from Rob Roberts Gun Works provides a trusted option that helps you achieve clean, tight patterns and improved hit probability while withstanding the rigors of regular shooting.