The Ruger 90672 Picatinny Rail Black Anodized Aluminum offers a precision one-piece base engineered for Ruger American Rifles, providing a solid foundation for accurate optics on a rugged platform. Made in the USA, this hardcoat-anodized 6-inch billet aluminum base features MIL-STD Picatinny slot-and-rail spacing that accepts Picatinny or Weaver scope rings, enabling flexible mounting options for your optics. The single-piece design enhances stability and alignment, ensuring repeatable accuracy across field and range use, while the durable construction stands up to demanding hunting and shooting conditions. Four TORX mounting screws and a T-10 wrench are included to provide secure, torque-controlled installation directly to the receiver, minimizing shifting under recoil and torque. This base is a purpose-built upgrade for Ruger American Rifles, delivering a reliable mounting platform that maintains a clean, low-profile silhouette without compromising strength. Whether youre outfitting a precision or general-purpose hunting rifle, this base supports a wide range of optics configurations while preserving the rifles balance and handling, making it an essential upgrade for shooters seeking dependable, factory-true alignment and long-term durability.