Product DescriptionIncrease your shotgun's capacity with the Carlson's 12 Gauge Magazine Extension (04505). Built from blued solid steel, this extension replaces your factory magazine cap with a threaded tube that allows you to add additional rounds for home defense, competition shooting, and law enforcement use. It includes the necessary components for installation, including a spring, base clamp with swivel stud, and a high-visibility follower (note: some extensions require the factory follower and may not include one). Compatible with Winchester SX2/SX3/SX4 and Browning Gold/Silver shotguns, this extension is designed for reliable performance and durable service.Product Highlights 8-shot total capacity (with 2-3/4" shells, including 1 in the chamber) for increased readiness Durable blued solid steel construction for long-lasting strength Threaded tube replaces the factory magazine cap for a clean, integrated fit Includes spring, base clamp with swivel stud, and high-visibility follower (model-dependent) Fits Winchester SX2/SX3/SX4 and Browning Gold/Silver 12 gauge shotgunsSpecs Brand Name: Carlsons Product Type: Shotgun magazine extension Gauge: 12 Gauge Total Capacity: 8-shot (with 2-3/4" shells, including 1 in the chamber) Material: Steel Finish: Blued Overall Length: 8.25 in Compatibility: Winchester SX2, Winchester SX3, Winchester SX4, Browning Gold, Browning Silver Included: Spring; base clamp with swivel stud; high-visibility follower (model-dependent) UPC: 723189045050 Manufacturer Part Number: 04505Disclaimer: 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.