There is a rather inexpensive way to get very good lighting for taking gun photographs.
See this article:
http://www.pbase.com/wlhuber/light_box_light_tent
For about $15 (including the price of a white sheet at GoodWill) I built up a small light booth like this.
The CPVC pipe is small, lightweight and dis-assembles into a kit that stores away easily.
The objective is to get even diffuse light.
You can even use one of these light booths outdoors in bright sunlight and not even have to buy desk lamps.
Marc
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Igitur si vis pacem, para bellum -
- Therefore if you want peace, prepare for war.