That I hate the ACR and will not use it. After many people have told me it's a decent gun, including Ganooch I just can't stand to use it. I tried to give it a chance for about 2 or 3 hours but these are the reasons I don't like it.
The bullets that fire from the gun are lower damage then the scar and the M16, yes it does fire faster then the other guns, but it's really only those first 2-3 bullets that matter if you end up head to head or trying to get somebody before they round a corner. I tend to lose firefights with the ACR. ...And maybe a little of the recoil too I dislike.
The Iron Sights suck ass. Most of my view is restricted, and you know how much I love my Iron Sights. It lets me use Slight of Hand which I cannot part with and I love my silencer, I won't give up my silencer to put a sight on the gun to make aiming better or bling instead of Slight of hand haha.
I wanted to use it because of the increase in ammo, but I unfortunately am sticking with my tried and true Scar-H