What extra plastic do you mean? If you're talking about the clear part, that's the light-gathering FO part, which makes the thing work without batteries. Pretty darned necessary.
As for the LaRue sight that replaces the rear sight of the AK, that's intruiging, but (a) I don't think it would be sturdy, and (b) If I was gonna use a battery optic, it'd be an Aimpoint. The whole idea here (for me) is to have something small and light, AND get away from batteries.
Yeah, but it's an AK. 9MOA is all the precision you need.
ThisiswhatI'msayin.
Also, you CAN co-witness. In fact, getting the Tech Site rear sight and co-witnessing it with this RMR on an ultimak is pretty much the ultimate setup for a rough and dirty close-in fighting mo-sheen like an AK.
As for the RMR not working in all conditions, I'm calling BS. The FO gathers plenty of light to work in all conditions - it's self-regulating/self-adjusting, if it's anything at all like all the other Trijicon products. In fact, if it's so dark that you cannot see a dot from the FO (even if the tritium is DEAD), then it's so dark that you won't see ANYTHING, including a target to shoot at.
As for being more difficult to adjust the point of impact, yeah I guess, but really, how often are you gonna do that on a red dot. It's a set-it-and-forget-it thing on a rifle like an AK. Once it's on, it'll stay on. But if not, I've got a pocket screwdriver on my keychain, so....
I'll admit the Aimpoint Micros are mighty nice, and I can see their usefulness, and they are a close close 2nd place, but I don't like turning them on and off. This RMS is ALWAYS ready to fire, whether the rifles been in the closet for 20 years, or you've been in your stand for 20 minutes, or anywhere in between.