This is the M-9 bayonet. Originally intended to be mounted on a rifle, it is also well suited to close-quarters combat.
―Official description

The M9 Bayonet is a cosmetic knife available to players in Counter-Strike: Global Offensive, and is an extremely rare item received from opening certain weapons cases. The M9 Bayonet is one of the five original cosmetic knives introduced in the Arms Deal update.


The M9 Bayonet is cosmetic only, and shares the same performance as the default knife.


  • The M9 Bayonet is based off of the Smith and Wesson SW3B, a knife designed after the original real-life M9 Bayonet and features a serrated blade, and is only named after the M9 Bayonet.
    • Alternatively, the M9 Bayonet is based on the Norinco D80, a knife that is also designed after the original M9 Bayonet and features a serrated blade.

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