http://cgi.ebay.com/Marui-AMT-Hardballer-45-LONG-SLIDE-Airsoft-Gas-Pistol_W0QQitemZ270210180370QQihZ017QQcategoryZ31685QQtcZphotoQQcmdZViewItem
I think it's one of the Marui cheapies where gas goes directly into the pistol grip.
i thought so too, considering the mag holds 16 rounds only without gas. and from the pics, it even seems to have a prominent seam down the back of the gun.
It's from Marui's line of nbb lower grade pistols. They run around $40 new in Japan and are sold in the department stores. There's no hop up whatsoever.
thnks for the heads up. how about shooting a moth at 15 feet away? :D