Don't like the color? Want different sound effects? DERIVE IT! This model is fully derivable. Make your own version, sell it! You get money, I get money, everybody's happy! Here's the template:

This is the texture used on the Body of the Gun. Use this to make simple changes, like color:

This is the Wireframe. It shows you the full texture layout and is very useful if you want to make a completely new gun texture from scratch: