I want to refinish an aluminum shotgun frame but I need to strip the existing finish first. I don't want the time consuming task of sanding/buffing if I can just use an acid bath. It is now colored and anodized, I want to get rid of the color and get if just anodized. All information welcome.
nial

http://www.pfonline.com/articles/stripping-anodic-coating
Of course, some aluminum framed guns are not anodized, but rather coated with a paint substance.