The Corrosion Technologies 50020 Bore Cleaner is designed to effectively and safely eliminate all forms of bore buildup. From hydrocarbon resins, dust, dirt, salts, and minerals to carbon and soft metal fouling, this versatile product ensures a thorough cleansing. It is capable of restoring the mirror-like brightness of pistol, shotgun, and rifle (including black powder rifle) actions, bores, and barrels.What\'s more, our Bore Cleaner is gentle on polymers, varnishes, soft metals and metal alloys, bluing, anodizing, and all other known gun finishes. It is odorless and transparent, allowing you to easily identify fouling and contaminants on the cleaning patch. This ensures that you can visibly check the cleanliness of your firearm for optimum results.