Glock-18 | Gamma Doppler Phase 4 was added to the game on September 22, 2021, as part of The 2021 Train Collection, which was released alongside the start of Operation Riptide.
The pistol’s slide has been coated with metallic paints and painted with a pattern of translucent wavy lines resembling smoke. The skin’s color scheme comprises various shades of purple, green, and teal creating gradient transitions. The rest of the body remains unpainted.
The skin's Float Value ranges from 0.00 to 0.50, which makes Glock-18 | Gamma Doppler Phase 4 available in all conditions. Small abrasions are already present on the pistol’s muzzle in Factory New condition. At levels of wear close to the maximum, the number and size of abrasions increase.
The pattern index affects the ratio of colors as well as the location of black, green and teal areas. Special or rare variations of the pattern are missing.
Glock-18 | Gamma Doppler Phase 4 became popular after the release and remains in demand today.