hey their I just recently purchased a MK18 and am curios on what type of optic im going to put on it, I know im going to buy one of the following: Elcan 1-4x with a red dot on top, Aimpoint red dot with flip magnifier, or a Flat dark earth Trijicon 4x32 with RMR scope. I need some pics to see which one I will like better, I have used them all and love them all. I would also appreciate any feedback one any of these scopes.