A local guy is wanting to sell a Tanaka m700 AICS, for only 150$. It has had no work done to it, and seems to be in very good condition. I dont think he has ever skirmished it either. Has anyone had any bad experiences with these rifles? I would only run it with an external rig if I picked it up. It would be my first dive into gas rifles, as all of mine have been spring in the past.