Realistically you need to get comfortable with the rifle before going ape shit on it personally. You could spend 3 grand on the most kitted out AR on the market, and still not hit fuckin broad side of a barn. Nothing against people buying AR15's, but a majority have no fucking clue as how to operate an AR15, let alone even shoot the damn thing. Many times on the range have I seen folks no be able to clear jams, break apart their weapon, or even shoot worth a shit. Most AR's are very capable of grouping within 2" @ 100 yards. If you can blow the center out of a standard military zero target, you need help.