The Safariland Ruger to Weaver adapter requires no gunsmithing and installs in minutes. The long Weaver style mounting rails allow for maximum scope placement options. Made from 60-61-T6, these mounts are durable yet do not add unnecessary weight. Anodized black finish. These mounts are the easiest way to put a full receiver length rail on a Ruger that uses their proprietary ring mounts.