Lightweight lubricant and rust preventive protects and conditions inside and outside the bore, as well as all other metal surfaces of your gun. Won’t dry off in scorching heat or stiffen/gum in subzero conditions. Keeps metal parts slick and reduces friction for long service life. Prevents corrosion and acts as a weather-resistant barrier. Works as a bore conditioner to reduce lead and copper buildup and for new barrel break-in. Excellent oil for general wipe down of firearms. Contains no Teflon™.