I have seen mounts that replace the rear sight too. No "scout scope" is just the name of the set up. It can also be referred to as a pistol scope or EER (extended eye relief) scope. The scope is Nikon, the mount is Ultimak, and the rings are Leupold.scout scope? Thats the mounts brand right? I have one that replaces the rear sight in a box somewhere. Looks good!