A number of years ago, I read an post on another gun forum about Ed's Red gun cleaner. I began using it then and have continued to do so with my 1911's and revolvers. It works great and has not inflicted any problems on my guns. I now own a Glock 21 and question if I can use Ed's Red to clean it. One of the ingredients in Ed's Red is acetone. Will the acetone (which is diluted among the various other chemicals) injure the Glock?