Product Description The Carlsons Sporting Clays Choke Tube in Full constriction is purpose-built for 12-gauge shooters who demand tight, consistent shot patterns on the sporting clays course or in the field. Precision machined from 17-4 stainless steel, this extended choke tube features a 25% longer parallel section compared to conventional choke tubes, delivering tighter and more uniform patterns downrange. The Full constriction (.700) is laser marked directly on the tube end for instant identification, while the knurled exterior makes for fast and simple installation and removal without tools. Compatible with Winchester, Browning Invector, Mossberg Model 500, Weatherby, and Savage 12-gauge choke systems, the Carlsons 19776 is backed by a lifetime warranty and accepts lead, steel, copper-plated, nickel, Hevi-Shot, and buckshot ammunition types. Product Highlights Precision machined from 17-4 stainless steel for superior durability and corrosion resistance in the field 25% longer parallel section produces tighter, more consistent patterns than standard flush-mount choke tubes Full constriction (.700) laser marked on the tube end for quick, at-a-glance field identification Knurled end design allows fast, tool-free installation and removal between rounds or during competition Broad compatibility with Winchester, Browning Invector, Mossberg Model 500, Weatherby, and Savage 12-gauge choke systems; backed by a lifetime warranty Specs Brand: Carlsons Manufacturer Part Number: 19776 UPC: 723189197766 Gauge: 12 Gauge Choke Type: Full Constriction: .700 Material: 17-4 Stainless Steel Style: Win Choke (Winchester Compatible) Compatible Systems: Browning Invector, Mossberg Model 500, Winchester, Weatherby, Savage 12-Gauge Approved Shot Types: Lead, Steel, Copper-Plated, Nickel, Hevi-Shot, Buckshot (Steel shot larger than BB not recommended in Full constriction) Warranty: Lifetime Weight: 0.15 lbs 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.