Rock River Arsenal has a AR15 style rifle coming out in 7.62x39 real soon. The LAR-47. It's supposed to be pretty decent. They remade both the upper and lower receiver to take commie AK47 mags for reliable feeding.

Also an Israeli company called Silver Shadow has the Gilboa series of rifles. Real nice...i'd love to get me one of those double barreled Gilboa Snakes!