FAMAS | Byproduct was added to the game on January 21, 2026, as part of The Harlequin Collection, released with the Fourth Season update. The skin was created by Valve.
Most of the rifle's body is covered with a dynamic pattern in shades of yellow and gray. The design resembles the texture of a gemstone and consists of numerous straight and angular lines forming separate facets. The lower part of the body and the pistol grip are finished in olive. Some parts of the stock are painted solid gray. The placement of the pattern elements depends on the pattern index.
The skin's Float Value ranges from 0.00 to 0.55, which makes FAMAS | Byproduct available in all exterior conditions. The first minor abrasions appear on various parts of the body in Factory New condition and become clearly noticeable at approximately 0.16. As the Float Value rises, abrasions increase in number and size. At the highest wear levels, a significant part of the paint is worn away, and the pattern becomes almost unrecognizable.
The pattern index affects the skin's appearance. There are no rare or special pattern variations.
The quality of FAMAS | Byproduct is Consumer Grade. The skin is not available in a StatTrak version. Its design visually resembles AWP | Exothermic from the same collection. Both skins use the same dynamic pattern, but in different color schemes. At low wear levels, FAMAS | Byproduct may appeal to players who collect yellow-themed loadouts.
