Product DescriptionIncrease the capacity of your compatible Remington 12 gauge shotgun with the Carlson's Magazine Extension Tube Kit (04500). Built from blued solid steel, this extension replaces your factory magazine cap to provide added magazine capacity for tactical, home defense, competition, or duty use. The kit includes the extension tube, a magazine spring, a base clamp, and a high-visibility follower to support smooth, reliable feeding.Fitment: Designed for use with Remington 870, 1100, 11-87, Versa Max, and V3 shotguns. Some newer Remington models may require removal of internal magazine-tube tabs/detents for installation.Product Highlights Blued solid-steel extension tube adds capacity while maintaining a durable, corrosion-resistant finish Includes spring, base clamp, and high-visibility follower for a complete installation-ready kit Threaded design replaces the factory magazine cap for a secure, integrated fit Configured for an 8-shot total capacity with 2-3/4" shells (capacity may vary with longer shells) Compatible with multiple Remington 12 gauge platforms including 870, 1100, 11-87, Versa Max, and V3Specs Brand: Carlsons Manufacturer Part Number: 04500 UPC: 723189045005 Gauge: 12 Gauge Capacity: 8-shot total capacity with 2-3/4" shells (per manufacturer/retailer listing) Overall Length: 8.25" (extension length) Material: Steel Finish: Blued Included: Extension tube, spring, base clamp, high-visibility follower Compatibility: Remington 870 / 1100 / 11-87 / Versa Max / V3 (12 gauge) Country of Manufacture: USADisclaimer: 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.