(Trade) If you're looking at this you already know what it is. one mag needs a new fill nozzle, the other works 100% The gun could use a new nozzle return spring and some silicone oil around the nozzle itself. The slide lock mechanism needs to be oiled. other than that the sear pin is in great shape and works on semi and full auto no problem. Feel free to ask questions about it. trades would be for any decent aeg but feel free to send offers.