I had camo tape on my old Win pump for more than 10 years. Since I used the same gun for waterfowl and turkey I saw no reason to take it off. I finally did simply because it was getting really ratty looking. Pulled the tape off and wiped it down with alcohol to remove the residue. Came off nice and easy. Alcohol won't hurt the finish on a gun. After all, you can pour it on your hands and if it doesn't get into a cut it won't bother them either.