The "Ideal Scope Mount System" have interface surfaces directly on the mount, making it possible to mount accessories either by picatinny rails or as direct interfaces. These picatinny rails mount directly to your SPUHR mount or rings and allow you to mount additional accessories.
Big Book Catalog, Issue:69, Page:250
Big Book Catalog, Issue:70, Page:255
Big Book Catalog, Issue:71, Page:260
Big Book Catalog, Issue:72, Page:261
Big Book Catalog, Issue:73, Page:264