I have an AK-47 MEC90 with the current synthetic stock and the original wood. No trades, please, and if you see it, I still have it. 

Build Quality: Unlike the standard 1 mm stamped receivers common on many AKM variants, the Norinco MAK-90 often features a thicker stamped receiver (about 1.5 mm to 1.6 mm) or a milled receiver, a chrome-lined barrel, and a reputation for smooth action and durability.