Product DescriptionAdd a sling to your Mossberg 590 or 835 without permanent modification. This Uncle Mikes set replaces the factory magazine cap with a cap that has an integrated swivel base and includes a 3/4" wood-screw buttstock swivel base plus two 1" Quick-Detach Super Swivels. The durable steel construction with a blued finish is built for dependable field use and smooth, secure sling attachment.Product Highlights Factory-style magazine cap with integrated swivel base for Mossberg 590/835 12-gauge shotguns Includes two 1" Quick-Detach Super Swivels for fast on/off sling changes 3/4" wood-screw buttstock swivel base included for rear attachment Rugged steel construction with protective blued finish Simple, drop-in installationno gunsmithing or permanent alteration required Specs Compatibility: Mossberg 590 and 835 12-gauge pump-action shotguns Loop/Swivel Size: 1 inch Construction: Steel Finish: Blued Included Components: Replacement magazine cap with swivel base; 3/4" wood-screw buttstock swivel base; two 1" QD Super Swivels Style: Quick-Detach sling swivel set Weight: 0.25 lb UPC: 043699181124 Manufacturer Part Number: 18112 Brand: Uncle Mike&';s 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 products manufacturer.