Of course it does.would dull the finish on firearms. As I remember, parkerized finishes.
I use Non Chlorinated Brake Cleaner for my Glocks. I spray out the frames, and blow them out with air. I also use it to make sure I have the oils out of my striker channels. I use denatured alcohol for dies, and press.
You don't want to snort any of the products used. If you aren't using these things out in the open, it's definitely not good for you.Pretty "nasty" stuff.
I have never tried this before. So it won't hurt the plastic frame?
I was afraid of damaging it so I simply used paint thinner and blew it out with air. Works but PITA.
I know others use brake cleaner with their steel guns.