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. F
- COLD BLUE FORMULATION THAT WORKS ON ALL STEEL (EXCEPT STAINLESS STEEL)
- FOR COMPLETE REBLUE APPLICATIONS
- FORMULATED FOR DEEP BLUE LUSTER