Product DescriptionCarlsons TSS Turkey choke tubes are purpose-built to deliver dense, longrange turkey patterns in 20gauge Browning InvectorPlus shotguns. Machined from tough 174 stainless steel with a matte black finish, this extended tube features a tight .565 turkey constriction optimized for Federal Premium Heavyweight Tungsten Super Shot loads while also performing exceptionally well with other manufacturers&'; smaller turkey shot sizes (7-9). Designed to put the maximum number of pellets in a 10-inch circle at 40 yards, it helps you reach out with confidence. Compatible with lead, copperplated, and HeviShot loads; not for use with steel shot.Product Highlights Designed for Browning InvectorPlus 20gauge shotguns with an extended profile for easy handling .565 turkey constriction engineered for tight, even patterns at long range Durable 174 stainless steel construction with matte black finish Optimized for Federal Premium Heavyweight Tungsten Super Shot; effective with 7-9 shot turkey loads Safe with lead, copperplated, and HeviShot; do not use with steel shot Specs Gauge: 20 Gauge Choke System Compatibility: Browning InvectorPlus Constriction Type: Turkey Constriction Diameter: 0.565 in Material: 174 Stainless Steel Finish: Matte Black Design: Extended tube; extends approximately 1 inch beyond muzzle Shot Compatibility: Lead, copperplated, and HeviShot; not for steel shot Optimized Load: Federal Premium Heavyweight Tungsten Super Shot (TSS) UPC: 723189380236 Manufacturer Part Number: 38023 Brand: Carlsons 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.