Does anyone know if AR-15 Upper and Lower Receivers can be anodized? If so who does them and do you recall a ballpark price?

They are Hard anodized from the factory.

Don't know of anyone that does them though

I guess I should have asked better because you're right they are anodized when they're made. I was thinking about colored (bright shiney red) anodizing an upper and lower.

The place I use does a lot of them. www.gleco.com
Ask for Scott Houston and tell him that I told you to call.
Butch