well i was looking at the one's they have at cabela's and they were roughly $400-600 so some where in that price range
I paid 1k for mine. I was going to get a colt but for a starting price of like 1500 I said fuck that. So I went with a DPMS. Well what one do you want? one just like mine? Caliber? .308,.223. If you get .223 I would get a 16" barrel.If a .308 I would get a 20". I would get the .223. The rounds are a lot cheaper. This summer I am going to get a .308.
Most of them are identical. The ones for $400-$600 are just going to be the basic flat rail with no carry handle, some might have collaspable stock, Some might not even have sights. You don't need the carry handle. I got mine with it but after the scope I don't use it, unless I want to shoot the iron sights. I would pick up a cheaper one. I would atleast get one with sights.
For the ar you will need to get a permit for it, unless the law doesn't apply at 21+ It's free and only takes a few weeks. It should be the handgun permit/Military style rifles.