Montana X-Treme 50 BMG Copper Killer 4oz.

50 BMG is the industrial strength copper remover that all shooters have been looking for. It is completely barrel safe and contains no acids, amines or clorides. This special formula makes all other copper removers obsolete!

The February 2005 edition of Gun Test Magazine named Montana X-treme's 50 BMG solvent as the "Best-working cleaner" in their recent testing of six other brands, including Sweet's, Shooter's Choice, Accubore, Tetra and Sports Care. Montana X-treme's 50 BMG received a four star rating from Gun Test Magazine and was found to be the only solvent tested which "completely cleaned" the old Model 70 firearm utilized in the testing process.