M4A4 | Polysoup was added to the game on October 2, 2024, as part of The Graphic Design Collection, released with The Armory update. The skin was created by Valve.
The receiver is dark gray. A group of purple crystals is located above the magazine. The central part of the receiver is decorated with a large stylized POLYSOUP inscription. Another group of crystals appears on the rear part of the receiver and is depicted as purple gradient outlines. The POLYSOUP inscription and both groups of crystals have a pronounced pearlescent sheen. The handguard, pistol grip, and stock are painted in a solid dusty pink color. The magazine is light olive.
The skin's Float Value ranges from 0.00 to 0.64, which makes M4A4 | Polysoup available in all exterior conditions. The first minor abrasions appear on the painted parts of the weapon in Minimal Wear condition. They become clearly noticeable at approximately 0.11. As the Float Value grows, abrasions increase in number and size. A dark patina also gradually develops on the weapon's surface. At the highest wear levels, a significant part of the paint layer on the handguard is worn away, while the POLYSOUP inscription becomes almost unrecognizable. The skin becomes noticeably darker.
The pattern index does not affect the skin's appearance.
The quality of M4A4 | Polysoup is Restricted. The skin is not available with a StatTrak counter. The name Polysoup refers to the term “polygon soup”, which is used in 3D graphics.