Where to Buy AW-338 in FDE?

Have you tried EuroOptic? They're an excellent company to deal with. Also, I've heard nothing but good things about Mile High Shooting. The AW isn't being made anymore. I know I'm keeping mine, but I suspect as the AT and AXMC start hitting the market, you'll see more AWs show up here in the classifieds.
 
Yeah, if you're hell bent on new give Mile High a call (specifically a call, not an email or PM) and have a chat about how to track one down. They're great and will treat you right.

Otherwise, hunt here on the forums for used AWs. Just buy what you find for a song and get new stocksides in your color of choice. One of the beauties of the AI platform...