OK, I'll give you some good advice but you'll need to come up with a little more money but it'll be well worth it years from now. Take a hard look at the Huldra Elite. It comes with 6 - 30-rounds mags but nothing else, so you'll have to purchase your sites/optics/sling/etc, which can be a little spendy, depending upon your tastes.
http://www.huldraarms.com/rifles/product_914ffd5b2cff/ The gas piston set-up sets this AR apart from most and I doubt you'll ever regret purchasing a gas piston AR, as it runs extremely clean and this particular brand has all the bells & whistles as standard - meaning the bolt carrier is ion-bonded and the chamber & bore is melonite - those are two serious upgrades right there. I've run a lot of AR's over the years and I've seen a lot of dirty bolt carriers kept running by adding a lot of "gun oil" but you'll never have that problem with this AR - it just stays clean and "wet".
I don't care for the rail system, as I have no need to hang a bunch of "cool" gadgets from my AR, but it is what it is.
As far as accuracy - well, it'll shoot some factory stuff into 1.25" to 2.5" groups at 100 yards, which is very acceptable AR accuracy. Handloading you might do better. Mine shoots lights out with one load and one load only - or at least from what I have tried so far. The ole stand-by of a 69 grain Sierra Match King with 24.5 grains of H4895 will do right at or better than 0.25" for a lot of match AR's and some Bushmaster Varmiters but not for my Huldra, as I get a consistent 0.8" but good ole Berger 77 grain tactical (not the VLD) ahead of 20.5 grains of VV N135 does 0.5" to 0.6" and that's the best mine will do and that's good enough for me.
I can only shoot those groups rested with a 14X scope, as with my aimpoint, sometimes I might get 3 out of 5 to do around a half inch but those other 2 will definately have a mind of their own and those two or three can happen at anytime during the string. Off-hand with a sling, a group of 4 to 6 inches is pretty good for me, as the norm is a tad larger.