This is a factory Ruger combination scope base designed for the 10/22 rifle, featuring a Weaver-style mount in a blue finish. The item is in open-box condition and ships free, making it a practical option for shooters looking to add or replace an optic mount on their firearm. It provides a standard platform for attaching compatible scopes or sights. Buyers should consider this base for straightforward installation and reliable performance typical of Ruger factory parts. Note that specific dimensions and hardware details are not listed here, so please check the listing for full specifications and compatibility information to ensure it meets your setup requirements. Factory Ruger Combination Scope Base Weaver 10/22® Blue #90329. Condition: Open box. Listed at 8.99 USD. The Ruger Combination Scope Base Weaver 10/22® Blue #90329 is a durable and reliable accessory designed specifically for Ruger guns. This scope base allows for easy mounting of a Weaver scope, providing shooters with a secure and stable attachment. The blue color adds a sleek aesthetic touch to the overall design, making it both functional and stylish for hunting and sporting activities. With the trusted Ruger brand and precise Weaver mounting, this scope base ensures precise and accurate shots for a successful hunting experience.