High-performance firearms deserve high-performance protection, and Hoppe’s Black delivers. Hoppe’s Black uses a formula designed for MSR’s and other high-round count firearms, but will work with any firearm. Designed to withstand a wide range of temps from -65 degreeF to 540 degreeF – it will prepare your firearm for any situation. Hoppe’s Black is comprised of a Gun Cleaner, Precision Oil, Copper Cleaner, Grease Syringe, and Lubricating Cloth.