Birchwood Casey Presto Blue Magnum Gun Blue - 3Oz Bottle #bc-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. 

KEY FEATURES

• Cold blue formulation that works on all steel (except stainless steel)
• For complete reblue applications
• Formulated for deep blue luster