you can pick up this gun and cheap mags from here.
He doesnt have stock for these listed, so you can email him and tell him what you want.
I bought one of these, and all i can say is that its AWESOME! the clear grip looks... well... not clear, lol, you can hardly tell, and i can get 60+ shots to the fill usually, and i can fit 30 rounds in the mag. I just love the thing!