I'm looking for 2 different sunshades for some scopes. 1st is a 3x9x40 Nikon prostaff. 2nd is a Bushnell Banner Dusk to Dawn 4x32. Do camera shops carry those for cameras possibly that would fit on a rifle scope? I called Nikon and they weren't any help. Optics Planet is out of stock. I don't want a rubber slip on. I'm looking for the aluminum/metal sunshades that screw on to the end of the scope. They are threaded so something has to fit on the end, right?