Foul-Out Gunk Blaster blows away grease and grime fast. This powerful gun- metal grade solvent quickly strips gun actions of burnt powder"" oil and grease"" eliminating malfunctions of moving parts due to fouling and build up. Quickly cleans chambers"" actions"" trigger groups"" bolt groups"" slides"" choke tube threading"" semi-auto gas ports"" extractors"" ejectors and other hard to reach areas.