I purchased a fairly inexpenive new one on ebay and it may well fall in the too weak to do anything although the reviews were good. I consider it fairly large and the receiver easily fits. It takes a long time to heat up and I assume the heat is something I want to use to clean the metal. I also purchased the Chem-Crest 235. Is an hour usually long enough running the cleaner on high heat. It does buzz pretty loudly.

So many guns, so little time!