for an AEG, i would NOT get a 6.01 unless it was meant to be a highly upgraded DMR like a PSG-1,M14, etc.get the Systema. i hear Guarder's are nice as well.
i was also wondering if the JG G36 can take TM mags with out mods. if not its not that big of a deal. yeah and elaborate on why a 6.01 would be bad on a stock or lightly upgraded gun.