Brownells Formula 44/40 Cold Blue 32 oz

Brownells Formula 44/40 Instant Gun Blue is a cold bluing solution designed for touchup work, refinishing, and protecting bare metal on firearms. This 32 oz bottle provides an economical supply for gunsmiths and hobbyists alike. Produces a traditional blue-black finish without the need for hot bluing tanks or specialized equipment. Simply apply to clean, degreased metal for quick, professional-looking results.