Butch's Gun Oil is a proprietary blend of natural oils that withstands the intense heat, friction and pressures produced in a firearm's chamber and bore. The product's rust inhibitor provides the absolute maximum in corrosion protection for both regular and stainless steel firearms. This is an excellent protectant and conditioner to be used in conjunction with Butch's Bore Shine. The rust inhibitor provides maximum in corrosion protection for both carbon and stainless steel barrels.