Box, that depends on how much you want to get into it. A good, general airbrush is a Badger 200. Some people really like the 150. Testors Aztec line is okay and advertised to be easier to clean. I haven't found that necessarily to be the case. Might be so with acrylics, but I have trouble getting the enamels out of mine, and I've ruined my general coverage tip tring to do so. The good thing about them is that you can get relatively cheep tips for a wide variety of applications. (Micromart usually has pretty good prices on the brush sets.) I have a Pasche VL that I really like. It's the most difficult to clean of any of them, but it's by far the best for detail work (that I have). You can usually find them on sale for about 50% off! If you want to go nice, Badger has a couple of them out there. The Anthem comes to mind, but I don't have any experience with it. And I've heard, the Iwata brushes are really nice. The people I know that work in the model shops seem to have them more than any other.
Make sure you leave enough money to get a compressor, unless you go with a compressed gas cylinder or something. Don't try to use the little cans...you'll go broke, and I find them too inconsistant in pressure.
If you've got the patience and interest, go for a double action. They will give you much better results, overall. But single action are much easier to use and usually to clean.
Make sure you keep your airbrush clean, and be careful to not damage the tip or the needle.
Also, I'd pick up a few extra bottles, a couple for mixing, and at least one that will fit on the airbrush.
Hope this all helps. Probably lots more than you wanted to know.
Good luck with it.
Bill
Bill
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DML M4A2 Red Army
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-- There is a fine line between "hobby" and "mental illness". (Author unknown)