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 -65AdegF to 540AdegF - it will prepare your firearm for any situation FeaturesSafe to use on any firearm boreDelivers a superior cleanAvailable in 2.5oz and 6oz aluminum pump bottles