Ok maybe I went a little over board. I was describing a 3gun rifle. If your wanting to pick up an AR, flat top upper and a 5.56 chamber 1/9 twist is a start. You can add everthing later as you skills improve and you want to get to the next level. Dpms, Bushmaster's are good stating platforms. AR's are like pizza you can get them plain or with everything, all depends on how much you want to spend.