Shooters Choice MC #7 Firearms Bore Cleaning Solvent is the only one-step concentrated solvent needed for cleaning and conditioning handguns rifles and shotguns. Its safe and easy to use. Shooters Choice MC #7 Firearms Bore Cleaning Solvent conditions the bore for impact accuracy on the first shot. Shooters Choice MC #7 Firearms Bore Cleaning Solvent seasons the bore to resist fouling build-up. It restores accuracy in old firearms maintains accuracy in new firearms and prolongs barrels life. Shooters Choice MC #7 Firearms Bore Cleaning Solvent is non-abrasive and harmless to the bore surface and removes powder carbon lead copper and wad fouling.