The MDT 1-Piece Scope Base Picatinny Rails are designed to make the mounting of your optics easier. They are machined from 6061-T6 aluminum, then hard-anodized black for a durable finish. The underside of the rails are profiled to allow the rail to be mounted flush on the receiver and to match the geometry of the ejection port. MDT's Scope Base Picatinny Rails are a precise and reliable solution when it comes to mounting a scope on your bolt action rifle.FeaturesMil-spec Type III anodized20 MOA railIntegrated recoil lugContoured for snag free operation Precise and reliableMakes optic mounting easierMade for Right Handed Rifles