BORE TECH C4 CARBON REMOVERBore Techs C4 Carbon Remover sets the standard for a high performance, cutting edge carbon cleaners that immediately begins to eliminate heavy carbon fouling without the safety hazards, harmful toxicity, and offensive odors typically found in competitive cleaners. Stubborn baked on carbon fouling in rifle throats, AR bolt tails and shotgun gas pistons are no match for the C4 Carbon Remover. Bore Techs C4 Carbon Remover is a cutting edge carbon cleaner