a standard AK has 16 of the 20 parts. 922 says you may use NO MORE than 10 FOREIGN parts. so this means you must replace 6 foreign parts with US parts, or REMOVE those parts.
almost all WASR's single or double stack have a tapco trigger group , that constitutes 3 pieces. a US made Magazine would constitute 3 pieces. safely putting you at 10 foreign parts
also i believe all WASR's come with a US made pistol grip, which would count as 1 more US part. and a US made muzzle break would be easy and cheap to ensure your safe.
( check the side of the pistol grip for a C molded in the plastic. this is Century Arms way of stamping the domestic made grips i believe)