Another small problem with my IOR ffp 3-18... I bought USO rings for it after the med. V-Tac rings were too high. Anyways these rings are so thick that I cant see my hash marks on my elevation turret to get them to line up. I saw a picture somewhere that someone had the top of there ring etched to line up with the hash marks. Any other ideas or any idea of who can etch the top of my ring if that's my only option.