Product DescriptionGet consistent, tight patterns from your .410 bore Browning shotgun with the Browning Standard Invector Full choke tube. This flush-fit tube is precision made from durable 17-4 stainless steel and set to industry constriction standards to deliver excellent, uniform densities. Designed specifically for Browning shotguns marked for the Standard Invector system, it is not compatible with Invector-Plus or Invector-DS barrels.Product Highlights Full constriction for tight, consistent patterns in .410 bore Flush-fit design that does not extend beyond the muzzle Constructed of polished 17-4 stainless steel for strength and corrosion resistance Engineered to industry constriction standards for reliable performance Made for Browning shotguns with the Standard Invector system only Specs Model/System: Standard Invector (flush fit) Bore/Gauge: .410 bore Constriction: Full Constriction Diameter: 0.018 in Material: 17-4 stainless steel Finish: Stainless Approximate Length: 1.875 in Compatibility: Fits Browning shotguns marked "Standard Invector"; not for Invector-Plus or Invector-DS UPC: 023614631897 Manufacturer Part Number: 1130257 Brand: Browning 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.