The Proven way for touching up or completely reblueing most guns.

The fast acting liquid gives a non-streaky, uniform Blue-Black finish.

Birchwood Casey® offers you the best way to touch up any scratches and worn spots, or even completely reblue most guns. It will give a non-streaky, even Blue-Black finish to steel (except stainless). Both Perma Blue® liquid gun blue and paste gun blue provide great blueing to metal that has already been thoroughly cleaned and is free of rust. *Note: Perma Blue® Liquid Gun Blue will not blue Stainless Steel, aluminium or non-ferrous metals.