Remington Rem Oil PRO3 features a three prong approach to firearm care and maintenance. The Rem PRO Cubed approach means that this product will help protect against corrosion friction and wear. PRO3 corrosion protection will protect your firearm from harmful rust and corrosion 3-t times longer than the competition while keeping your action working smoothly. The formula is safe for both internal and external components. Keep your firearm in good working condition with Rem Oil PRO3.