Who said you have to use AK mags? http://www.cproductsllc.com/shop/product_info.php?cPath=22_36&products_id=59You'll need a different lower also.No way AK mags will fit in a standard AR lower mag well.
Uses its own bolt too, but ammo should feed fine from 5.56 magazines.what about 5.45x39:?