M9 Bayonet | Case Hardened (M9 CH) was added to the game on August 14, 2013, alongside "The Arms Deal" update. The skin is available in 11 cases released in 2013-2015.
The hardened blade of the knife and the guard are covered with blue, violet, and yellow stains. The handle remains unpainted.
The skin is available in all conditions, and its Float Value is unlimited. Traces of wear such as scratches and abrasions do not appear on the knife even at the highest Float Values. At levels of wear close to the maximum, the blade is coated with a layer of patina and looks significantly darker.
The pattern index affects the location, color, and shape of the stains. The pattern variations with a predominance of blue clean stains on the play side (“Blue Gem”) are considered to be the rarest and the most expensive ones. The pattern variations with 50%-60% of blue on the play side are also quite rare. The cheapest and the most common pattern variations are those with yellow blades or yellow blades with inclusions of blue covering up to 30% of the blade surface.
The quality of tM9 Bayonet | Case Hardened is Covert. The skin has a StatTrak option and belongs to the "Case Hardened" series.
M9 Bayonet | Case Hardened is currently a rather popular skin, which is often seen in the game.