Product DescriptionCarlson's Bismuth Bone Buster choke tube is engineered to deliver dense, consistent patterns with bismuth shot. Precision CNC machined from 17-4 heat-treated stainless steel, it features an extended parallel section for improved performance over conventional factory tubes. Extensively tested with a variety of loads, it offers devastating downrange patterns and versatile use with lead and Hevi-Shot loads. The Extended Range model is also suitable for steel shot not larger than #2. Designed to fit Beretta and Benelli shotguns that use Mobil choke systems, it includes a choke wrench and is made in the USA.Product HighlightsPrecision CNC machined from durable 17-4 heat-treated stainless steelExtended parallel section for tighter, more consistent patternsOptimized for bismuth; compatible with steel (up to #2), lead, TSS, and Hevi-ShotFits Beretta and Benelli Mobil-choke shotguns; includes free choke wrenchMade in the USA for quality and reliabilitySpecsGauge: 12 GaugeChoke Type: Extended RangeMaterial: 17-4 heat-treated stainless steelCompatibility: Beretta and Benelli shotguns using Mobil choke systemAmmunition Compatibility: Bismuth; compatible with lead, TSS, Hevi-Shot; steel shot up to size #2Country of Manufacture: USAUPC: 723189092016Manufacturer Part Number: 09201Brand: Carlson'sDisclaimer: 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.