Or you could build your own. Many people on this forum have done so. It is pretty easy to do and you will know the AR platform from the ground up. See the stickies at the top of this section for more info.
You might want to comparer your states sales tax and your local stores priceing. Ive found when spending that kind of money purchasing online and paying the transfer fee is the least expensive route. My states sales tax is 7% +/- and my ffl charges $20 per transfer. Not to mention the retail firearms dealers around here seem to be overly proud of their merchandise.