Product DescriptionCarlson's Delta Waterfowl Extended Choke Tubes are engineered to deliver tighter, more uniform shot patterns for waterfowl hunting. Machined from durable 17-4 stainless steel, each Mid-Range and Long-Range choke features a 25% longer parallel section to enhance consistency, a knurled end for quick tool-free removal, and laser-marked constriction and size for easy identification. These non-ported chokes are suitable for steel shot; however, do not use steel larger than BB or loads faster than 1550 FPS through the Long Range choke-use the Mid Range choke for higher-speed loads.Product HighlightsTwo-pack includes Mid-Range and Long-Range chokes optimized for waterfowlPrecision 17-4 stainless steel construction for strength and longevity25% longer parallel section for tighter, denser, and more consistent patternsKnurled ends and laser markings for quick removal and easy referenceCompatible with Winchester, Browning Invector (Standard), Mossberg Accu-Choke, and select Weatherby/Ruger systemsSpecsBrand: Carlson's Choke TubesMaterial: 17-4 Stainless SteelGauge: 20 GaugeChoke Types: Mid-Range and Long-Range (non-ported)Pack Quantity: 2 chokesCompatibility: Winchester Choke; Browning Invector (Standard); Mossberg Accu-Choke; Weatherby; Pre-1993 Ruger Red Label (note: Winchester SX-2, SX-3 & SXP use Browning Invector Plus tubes)Included: Choke wrenchCountry of Origin: USAUPC: 723189074715Manufacturer Part Number: 07471Steel shot guidance: Do not shoot steel larger than BB or loads faster than 1550 FPS through the Long Range choke; use the Mid Range choke for loads exceeding this size/speed.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.