This is the M-9 bayonet. Originally intended to be mounted on a rifle, it is also well suited to close-quarters combat. It has been given a forced patina using lemon and mustard dripped onto the surface.\n\nIf you think it's messy now, wait until you see it under a blacklight
The Stained M9 Bayonet was released in 2013 as part of the CS:GO weapon collection, obtainable through case drops, and known for its rugged look.
It features a dark, mottled finish with a marbled, stained appearance in shades of black and dark gray, resembling a worn and used blade.
Popular for its gritty, battle-worn look, the Stained skin appeals to players who prefer a rugged aesthetic and has steady market demand.