B.U.S.T.E.R is a skin for Gyrocopter. The skin was added to the game on September 16, 2020. It was created by VALVE.
The rarity of B.U.S.T.E.R is Immortal. The skin doesn’t have alternative styles. At this moment the item is available for trade.
At the moment, B.U.S.T.E.R is not on the list of popular skins and is rarely seen in the game.