Birchwood Casey Presto Mag Gun Blue 3oz – Cold Blue Touch-Up Solution

Birchwood Casey Presto Mag Gun Blue is a liquid cold blue solution for touching up scratches, worn spots, and marred areas on blued firearms. This formula works at room temperature without heat, making it safer and more convenient than hot tank bluing for field repairs and restoration work. It penetrates quickly to restore a protective blue-black finish that blends with factory bluing.

This 3oz bottle is sized for home gunsmithing or range kit use. Compatible with carbon steel barrels, receivers, and parts on rifles, shotguns, and pistols. Not for use on stainless steel, nickel, or chrome finishes. Surface must be thoroughly cleaned and degreased before application for proper adhesion.

• Type: Cold blue liquid
• Volume: 3 ounces
• Application: Touch-up and restoration of blued steel firearms
• Compatible Materials: Carbon steel only
• Use: Apply to clean, oil-free metal; neutralize and oil after bluing