Birchwood Casey 13525 Presto Blue Magnum 3 oz. Bottle 13525 BC-13525

BIRCHWOOD CASEY PRESTO MAG GUN BLUE 3 FLUID OUNCES PLASTIC BOTTLE #13525 Presto Mag Gun Blue is a cold blue formulation that works on all steel (except stainless steel). Specifically formulated for when you want a deep blue luster on your firearm's metal surfaces. For complete reblue applications. Manufacturer Part Number: BC-13525