Warne Ruger American Vapor Picatinny Rail in black anodized finish offers a durable and budget-friendly mounting solution crafted from lightweight 6061-T6 aluminum. Specifically designed for Ruger American long-action rifles this rail is compatible with Picatinny and Weaver-style rings and meets NATO-STANAG specifications. Secures easily to the receiver using 6-48 length screws for a dependable and precise fit.