Was able to re-aquire my old shv 4-14 x 50 ffp mil r scope after a few years of a friend storing it for me. Anyway I'm looking up sunshades for it and found most sites saying the nxs one will fit. My question is what is this knoby ring around the objective lense does it need to come off for the shade to fit? What's weird is if you google images the scope you don't even see it in the pics.