Product DescriptionThe Nordic Components MXT extension nut allows installation of a Nordic Components MXT 12 gauge shotgun extension tube kit. It replaces the factory magazine cap and is required to properly mount the extension tube kit on compatible Mossberg shotguns. Built for a secure fit and finished in black, this component is a must-have for completing an MXT magazine extension setup.Product Highlights Required extension nut for installing a Nordic Components MXT 12 gauge shotgun extension tube kit Replaces the factory magazine cap for a proper MXT extension interface Compatible with select Mossberg models including 590, 590A1, 835, 930, and 935 Black finish to match common tactical and field shotgun setups Designed by Nordic Components for MXT extension system compatibilitySpecs Brand: Nordic Components Product Type: MXT magazine extension nut Gauge: 12 gauge Color: Black Compatibility: Mossberg 590 / 590A1 / 835 / 930 / 935 MPN: NUT-MB-12-00 UPC: 816696020822Disclaimer: 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.