Go to Brownell and get there classic rust blueing, follow there instruction , Strip blueing in a pvc pipe 4in with cap on 1 end
dilute acid 50-50 with water,that will strip the blueing in 10 second, rinse well Polish with scotch brite pads ,wipe down with automotive type cleaner that has no petroleum product in it,apply rust blueing , My cabinet I keep 60% humidity and 70 deg
let rust for 3 hrs, boil and card with Brownells stainless steel
4 row wire brush,slow speed , Full strength 1-2 application
dilute as you proceed Less messy thann mixing chemicals


Lyons Gunsmithing