A sig AR for under $800? Youre dreaming. I can think of two solid AR's that are in that price range. The DPMS Oracle, and the S&W M&P Sport. By far, the S&W is the better choice. I have thousands of rounds through mine, with only one failure, and it was definitely ammo related.

The best option though, is to build one. Its cheaper, and you get the gun that YOU want right off the bat, rather than having to add and remove parts to make it what you want.

Sent from my race truck so I can win wherever I am!