KWA F90 gbb

I am selling my KWA F90 GBB; it runs perfectly and has an NPAS installed. It comes with 4 magazines, all of which are gas-tight; the feed lip on one is broken, but the replacement part costs €8 on the KWA website.
Price: €650, or open to trades for other interesting GBB rifles.
Pickup and inspection possible at the Airsoft Park near Vienna.
P.S. The sight is not included.