Butterfly Knife | Ultraviolet (BFK UV) 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 skin resembles a brighter version of Butterfly Knife | Night. The entire body of the knife is painted matte black. The black handle is complemented with purple inserts.
The skin is available in all conditions, and its Float Value ranges from 0.06 to 0.80. Levels of wear can be determined by the size and number of abrasions, which start to appear along the cutting edge. At Float Values close to the maximum, more than 90% of the paint layer is peeled.
The pattern index does not affect the appearance of the skin.
The skin is most valued in Factory New condition, which is considered to be the rarest and the most expensive option. The quality of Butterfly Knife | Ultraviolet is Covert. The skin has a StatTrak option and belongs to the "Ultraviolet" series.
Butterfly Knife | Ultraviolet is very popular and is often seen in the game due to a relatively low price.