Tetra Gun Suppressor Cleaner Bath 128 oz. solution for silencer cleaning.  Safe on steel, titanium and aluminum metal surfaces.  Ideal for general ultrasonic cleaning machine use to remove carbon fouling but also good for parts wash or bath gun cleaning method.  Lifts carbon fouling off of gunmetal surfaces along with solvent residue and pre-existing lubricant.  Flush out after use.
 
Proven effective over many years by experienced gunsmiths.