The Valken 1/2” Riser Mount with 8 ring slots is a rifle accessory that mounts to a flat top picatinny rail. This tactical riser mount is used to raise an optic’s line of sight by 1/2”, and locks firmly into place with two thumb screws. It installs in seconds, and is very helpful when using with full-size rifle scopes. We recommend our Valken RDA30 red sot sight for use with this riser when you need those longer ranged shots.