The Leupold 2-Piece Standard Scope Base Ruger American - Matte was developed to be the ideal way to mount your optics on an incredibly stable surface. Incredibly versatile, the Leupold 2-Piece Standard Scope Base Ruger American Matte is made using a forged and machined steel construction that will provide you with years of efficiency and reliability. For a great way to make sure you are mounting with one of the best bases available, choose the Leupold Standard 2 Piece Ruger American Mounting Base.