For use with Ruger 10-22 rifles Precision made for years of service Black or Silver finish to match existing Ruger equipment In order to mount a scope on you Ruger 10-22 you need a solid scope base. The Power Custom 10-22 Action Scope Base is just what you need. This scope base is a snap to install. Simple use the existing mounting holes on your rifle and this base will lock your scope into place. Mfg: Power Custom SPECS: Metal construction, Black or Silver finish. Mounting screws included. For Ruger 10-22 rifles