I know I wrote the thread about dumping the Ar but I figured I'd give the platform one more shot. Sold the 5.56 Ak I had to pick up this Colt. So has anyone put a good amount of rounds down range with one? I don't think the pencil profile barrel will make any difference in preformance. But let's hear what you all have to say about it. How do you run yours and did you like it?