I was interested in the "Foul Out" system because I have a couple military surplus rifles with really dirty/fouled barrels. I couldn't find anything on the Outer's kit, finding it's discontinued, so I checked google and found a lot of info;homemade electrolysis bore cleaner - Google Search

I also have used Wipe Out foaming bore cleaner with very good results; it removed 2.74 lbs of gunk out of a 70+ year old #4 MkII barrel. Also cleaned up some Hi-Tek fouling from a 1911 barrel rather quickly...