It was an old 3x9 Leupold compact scope. Do not recall mount height, but I always mount as low as I can, so probably a low as that scope has a 33mm Objective lens. You might try contacting DNZ. Most of my 40mm scopes do fine with low mounts, but a few did not. Seems the DNZ has enough height from the base part, that a low might just do it, but I am not sure.