Painting a Warhammer Flamethrower

How to paint a Grimdark Flamethrower. That special barrle burn for meltas and flamers with a dash of rust and oxide. #warhammer40000 #warhammer40k #warhammer #gamesworkshop #spacemarines #primaris #adeptusastartes #ultramarine #imperialfist #bloodangels #darkangels #whitescars #chaosspacemarines #tau #deathguard #akinteractive #greenstuffworld