It’s one of the most beloved knives in the Counter-Strike community. In the game, you can see T and CT playing with the Butterfly knife while running around the maps. This animation often happens during esports streams, making this type of CS2 knife especially iconic. The Butterfly knife has a pretty thin blade that can be hidden into the two-part handle. This feature makes the knife popular in the criminal world too. And it’s why the authorities ban it. The Counter-Strike Butterfly knife was added to the game with the Operation Breakout update.