The official Butterfly Knife Description states:
“This is a custom-designed balisong, commonly known as a butterfly knife. The defining characteristic of this weapon is the fan-like opening of a freely pivoting blade, allowing rapid deployment or concealment. As a result, butterfly knives are outlawed in many countries.”
The Butterfly Knife is a cosmetic CS GO knife available to players in Counter-Strike: Global Offensive, and is an extremely rare item received from opening a Operation Breakout Case. The Knife was introduced in the Operation Breakout update.
Popular CS GO Skins for the Butterfly Knife:
Butterfly Knife | Doppler
Butterfly Knife | Marble Fade
Butterfly Knife | Crimson Web
The Butterfly is cosmetic and shares the same performance as the default knife. It is an extremely rare item and can only be found in an Operation Breakout Case at a low chance.
The CS GO Knife is also a weapon in Counter-Strike Online, which is more popular in Asia.
The Butterfly Knife has two different draw animations, played at random. One shows the player simply flicking open the knife. The other shows the player spinning it open with an open hand before gripping on it.
The Butterfly CS:GO Knife has two different inspect animations, played at random. One shows the player flicking the knife forwards and backwards before holding the safe handle with his thumb and index fingers and balancing the handles on his other fingers. The other shows the player spinning it on his thumb before holding it in the same position.
The knife is often sought out due to its unique draw and inspect animations.
The Butterfly Knife is based on the Terry Guinn Gargoyle knife.