Rem oil Pro3 (Pro "cubed") is a premium gun care lubricant that provides lower wear, higher lubricity performance under stress and superior corrosion protection. Rem oil Pro3 was specifically designed to withstand the high pressure, high cycle environments of Semi- or fully-automatic firearms, keeping them protected from harmful rust and corrosion up to 3x-5x longer than similar oils. It is specially formulated to offer premium performance and lubricity to keep actions working smoothly and protects both internal and external components from harmful metal to metal wear. Rem oil Pro3 cleans dirt and grime from exposed metal surfaces while displacing non-visible moisture from metal pores..