Just bought one off of eBay for $350 shipped; apparently it's brand new and hasn't been used. The guy had good feedback and seemed reliable, so I'm not worried. I just want to know what people think of the Masada or G&P in general, since my only experience with them is my friend's custom G&P MOE (previous owner added a dual-tone UBR stock and some rails).
What I have heard about the rifle; however, is that it's based off of the A&K Masada, but with a G&P 7mm gearbox, new air nozzle, new hop-up, and an (illegal) copy of the Noveske amplifier. I post some pictures when I get it (hopefully early next week, since he's in New York).