There's always the option to build one. If you have someone in the know and/or a gunsmith shop handy (used to work @ a full function gun store), it's not a bad way to go.
I have $710 in mine, base setup. That's M4 profile DPMS upper, Tac Machine stripped lower, colt parts kit and cheapass stock. I probably put about $230 more on in accessories: Hogue pistol grip, Magpul MOE stock, DPMS carry handle, and a used NcStar scope (cheap, I know). Makes for a good beater/SHTF rifle, I would like to get into 3-gun matches when I get somewhere that has them.
I have $710 in mine, base setup. That's M4 profile DPMS upper, Tac Machine stripped lower, colt parts kit and cheapass stock. I probably put about $230 more on in accessories: Hogue pistol grip, Magpul MOE stock, DPMS carry handle, and a used NcStar scope (cheap, I know). Makes for a good beater/SHTF rifle, I would like to get into 3-gun matches when I get somewhere that has them.