That's a decent choice but not ideal. A fixed power scope is just to restrictive for me. I like the idea of having a few power options to choose from depending on the situation. I know the Acog has a reticle built for the 5.56 ballistics but still very limiting. For quick shots that scope is just to much to deal with. Most engagements in the middle east are from 100 and out unless you engaged in urban combat. For that kind of warfare the Aim Point is optimum. For the civilian a blend of those type of options is the wise choice. With scopes offering true 1x all the way up to 8x together I just can't justify a fixed power scope. Very limiting. You can't get real precise at 100 with 4x and it takes a second to adjust your eye to a fixed power scope in a close combat situation. I am sure you will like it but you will just be doing range work with it or some short range hunting and 4x is good for hunting. When I pick up a rifle in a home defense situation I want instant target acquisition and for target shooting I want a good higher power to get real precise at 100 and get half way accurate at 200. With those 1-8x30 scopes also have reticles for the 5.56 round so no matter what power you are on you have drop hash marks for it as well. To me that is the ideal scope for a civilian AR. It's not my scope so it's really what ever floats your boat. However, I do believe to many people pick combat optics for their civilian AR15 platforms with the idea if it's good for the military then it must be good for me. I am knocking your choice and I am sure you put a lot of thought into it. I just think their are to many weekend commandos that like the idea of a military equipped AR15's.
Aimpoints are good optics, I've got one on my patrol rifle. And also on my personal rifle, I just wanted something with some magnification, and the weight and durability of the acog vs traditional scopes is what sold me in the end, the only other option I was hung on was the eotech vudu, and when you factor in the high cost, plus paying additional costs for rings vs $850 for a new acog, the choice was a no brainer