AR-15s

If you are at all mechanically inclined you can put the lower together yourself and plop a pre-built upper on top and save a hundred or two. You only need the FFL transaction on the lower. I actually build my uppers too now, including chambering the barrels. My first one I bought a stripped Rock River Arms lower and a parts kit and then put an upper on it from White Oak Armory. Guaranteed to shoot better than you can. If you just want it to go bang and hit a can out to 200 yards, just about any of them will do that. I've had good luck with PSA, Colt is fine but your are paying a premium for a name, not quality IMO.