Carlson&';s Choke Tubes Browning Invector Plus Sporting Clays Choke Tube - 20 Gauge, Extra Full, Stainless Engineered for serious sporting clays shooters, Carlson&';s Choke Tubes Browning Invector Plus Sporting Clays Choke Tube delivers superior downrange performance over standard choke tubes. Precision-machined from heat-treated 17-4 stainless steel, this choke tube is built to withstand the rigors of high-volume shooting while maintaining consistent, tight patterns. The design incorporates a 25% larger parallel section compared to conventional choke tubes, producing more uniform and reliable patterns shot after shot. A knurled end makes for quick and tool-free installation and removal in the field, and the constriction value is laser-marked directly on the tube for instant, easy identification. Compatible with the Browning Invector Plus system in 20 gauge, this extra full choke tube offers a .595 diameter constriction and is backed by Carlson&';s renowned lifetime warranty. Product Highlights 25% Larger Parallel Section: Throws more consistent, tighter patterns than conventional choke tubes for improved sporting clays performance. Precision-Machined 17-4 Stainless Steel: Heat-treated for exceptional durability, corrosion resistance, and long-term reliability. Knurled End Design: Allows quick, easy installation and removal without tools, even under field conditions. Laser-Marked Constriction: Constriction value is permanently marked on the tube end for instant identification and hassle-free tube selection. Lifetime Warranty: Carlson&';s stands behind every choke tube with a full lifetime warranty for lasting confidence in your purchase. Specs Brand: Carlson&';s Choke Tubes Gauge: 20 Gauge Choke Constriction: Extra Full Diameter: .595 Material: 17-4 Stainless Steel (Heat-Treated) Fit: Browning Invector Plus Finish: Stainless Warranty: Lifetime UPC: 723189188788 MPN: CRL18878 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.