Product DescriptionBuilt for serious waterfowl hunters, the Carlson's Delta Waterfowl Extended Choke Tube delivers tighter, more consistent patterns than conventional factory tubes. Precision-machined from durable 17-4 stainless steel, it features a 25% longer parallel section to reduce flyers and improve density. The knurled end makes installation and removal quick and easy, and the constriction and size are laser-marked for fast reference in the field. Safe for steel shot, it performs exceptionally well across common waterfowl loads.Product HighlightsExtended choke tube with 25% longer parallel section for consistent, dense patternsMid-Range constriction (.600) optimized for 25-40 yard shots17-4 stainless steel construction with knurled end for quick, tool-free removalCompatible with Winchester WinChoke, Browning Invector, and Mossberg 500 20-gauge shotgunsSafe for steel shot; also suitable for lead, copper, or Hevi-Shot loadsSpecsProduct Type: Extended shotgun choke tubeGauge: 20 GaugeConstriction: .600 (Mid-Range)Material: 17-4 stainless steelCompatibility: Winchester WinChoke, Browning Invector, Mossberg 500 (20-gauge systems)Extension: Approximately 0.75 in. beyond barrelShot Types: Steel, lead, copper, or Hevi-ShotCountry of Manufacture: USAUPC: 723189074548Manufacturer Part Number: 07454Brand: Carlson's Choke TubesDisclaimer: 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.