Shooter's Choice MC #7 Firearms Bore Cleaning Solvent is the only one-step concentrated solvent needed for cleaning and conditioning handguns, rifles and shotguns. It's safe and easy to use. Shooter's Choice MC #7 Firearms Bore Cleaning Solvent conditions the bore for impact accuracy on the first shot. Shooter's 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. Shooter's 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.