That ad shows scope blocks way out in front of the rear sight. I thought all the Spiegels had the holes under the rear sight. I'm confused.
That is an artists rendition, and is wrong. The instructions for the Spiegel Mossberg scopes (I have a copy courtesy of Groogle Deluxe) say the mounts should be about 7.5" maximum spacing (from memory, my not be exact but I know that's close) - that would put the front holes under the rear sight.
