I will also note that for your AR15 needs, the S&W MP15 Sport is available at Sportsmans for a mere $519. This is a well reviewed gun.
http://www.sportsmansoutdoorsuperstore.com/products2.cfm/ID/104547/811036/smith-and-wesson-mp-15-sport-5.56-rifle
I think that is the one for sale at Academy with a hard case and magazine chargers for $599.99
http://www.academy.com/shop/pdp/smith—wesson-mp-556mm-nato-semiautomatic-sport-rifle-kit?repChildCatid=3116194