The Carbon Killer 4 Oz Gun Cleaning Solution is specially formulated for extreme baked-on carbon cleaning that dissolves carbon and lead on contact for superior firearm maintenance.Carbon Killer 4 Oz Gun Cleaning SolutionDissolves carbon and lead buildup on contactDesigned specifically for soaking metal gun partsReusable formula for multiple cleaning sessionsProfessional-strength solution for extreme cleaning needsNot recommended for exterior gun surfacesPerfect for serious gun enthusiasts and professionals who need powerful carbon removal for heavily fouled firearms and components requiring deep cleaning maintenance.