Need suggestions for some optics. Looking for a relatively inexpensive scope for one of my AR's. I have an ACOG and would love another one but can't afford something like that now. I'm looking for something in the $100 to $200 range. Don't need a whole lot, if any, magnification, 2X to 4X would be more than enough. Don't want an electronic sight I have to turn on before use. I want to be able to grab it and go, like the ACOG.