Butterfly Knife | Doppler Phase 3 (BFK P3) was added to the game on March 15, 2017, alongside the "Take a trip to the Canals" update. The skin is available in cases "Spectrum" and "Spectrum 2".
The blade of the knife is painted with metallic paints and adorned with a pattern of translucent wavy lines resembling smoke. The color scheme of the skin includes various shades of blue, brown, green and black creating gradient transitions. The handle is unpainted and complemented with green inserts.
Float Value of the skin ranges from 0.00 to 0.08, which makes Butterfly Knife | Doppler Phase 3 available only in Factory New and Minimal Wear condition. At levels of wear close to the maximum, the knife has noticeable scratches and abrasions located along the cutting edge.
The pattern index affects the ratio of colors as well as the location of blue, brown, green and black areas. Knives, which have no blue color on the play side of the blade resemble Butterfly Knife | Doppler Black Pearl. These pattern variations are titled “Fake Black Pearl”.
The quality of Butterfly Knife | Doppler Phase 3 is Covert. The skin has a StatTrak option and is close to phases 1 and 4 in terms of rarity. The skin belongs to the "Butterfly Knife | Doppler" series.
Due to a relatively low price, M9 Bayonet | Doppler Phase 1 became one of the most popular and common skins in the “Doppler” series.