The M4A4 | Poseidon skin was added to CS:GO in the Operation Vanguard update on November 20, 2014. It features a blue aquatic theme with tentacles and ocean waves on the body of the gun.

The Poseidon skin has a bright blue finish with purple and pink accents. The main design element is the Kraken, a massive octopus/squid creature wrapped around the barrel and stock of the gun, with its tentacles extending downwards.

• DefaultThe standard version of the skin
• StatTrakTracks confirmed kills with this weapon
• SouvenirDropped during Operation Vanguard matches and autographed by an MVP player

The Poseidon is one of the most sought after and expensive M4A4 skins. Its rare, intricate design and association with Operation Vanguard make it very desirable amongst players and skin collectors.