Spray painting?
 

How do you guys feel about spray painting airsoft guns? Thinking about doing it. Is it a good idea? Are there limitations on if it's metal or ABS or not?

Lots of folks do this, basically, take out the guts, tape off any crevices you don't want paint getting into, and fire away. (There are quite a few guides on the old tube to follow if you don't know what you are doing