I see where the Buckmaster series now have sunshades available in both 40 and 50 millimeter for the 3-9, 4.5-14 and 6-18 models. My question is this. Does anyone know if the shade for a BM will fit a similarly sized Monarch? I have a 3-9x40 Monarch that I would like a shade for is why I am asking. Sent Nikon an email but no response as yet.