I have a PT24/7 G2 Compact, 40 S&W, blued finish. I would like to get a coating on it, but I don't even know if I can coat the blued metal. If I can coat the metal, what brand should I go with?

Also I want to make it Olive.
Thanks alot,
kjw211
Well can't speak for dura coat but Cera -Koat can be applied over really anything, metal, polymer, glass, etc, it was not developed for firearms but due to its good properties it quickly became popular.
the thing with cera koat as opposed to most other coatings is it is NOT a do it at home application, the coating must be applied very thin and the surface must be properly cleaned and prepared.
I would suggest that you check out cera koats website they have litterly hundreds of colors to choose from and a list of authorized dealers pretty much all across the nation.
Olive green and black are very popular colors, i almost went that route with mine but went instead with burnt bronze and graphite black, the 1911 AL had the slide only done in the graphite black, nice flat abbrasion resitant coating with 0 reflectivity.