I was in my gunsmiths shop the other day. In his ultrasonic cleaner he was using Simple Green in the gallon. Claims its as good or better than caustic cleaners and smells good and is safe.
I don't have an ultra sonic cleaner but do like to soak metal parts in a solution which will break down crud when I'm not in a hurry.
This seems so much cheaper than Kroil or Carbon 2000 cutter, etc.
any comments on what works for you? Talking AR parts, shotgun parts, pistol parts, choke tubes, etc.
"I ain't here for a long time, I'm here for a good time"
King George Strait