Body shops that do a lot of production work use a gun that is designed to work with a turbine system. I doubt if you are interested in getting something like that for occassional use. There are a number of gravity feed HLVP guns, with cheap guns knocking off the Devilbiss (and other) designs. If you do very infrquent work, the knockoff guns work OK, but you can expect minor hassles with them (40-100 range). If you step up to the compressor guns from a good manufacturer, expect to pay $150 to $400. I personally wouldn't go with the name brand bottom-of-line, because these are the same as the knockoff guns. Step up to the mid to high priced guns where you get cup liners and other features that are nice to have.
