Who is going to use a loaded plastic gun butt as a hammer? EVERYONE carries a Glock. Or, you can fiddle with popping the mag, racking the slide, and THEN scarring up the butt...
Or you can just let the guy burn to death to keep from scratching your gun. Not much of a choice in my mind, but then again I’ve pulled more than a few accident victims from wrecked cars. You use what’s at hand to get the job done.