Butterfly Knife

★ Butterfly Knife | Doppler | Phase 4

★ Butterfly Knife | Doppler (Phase 4) is a Covert knife skin for the Butterfly Knife in Counter-Strike 2. It drops from Spectrum Case and Spectrum 2 Case. It comes in 2 wear levels, from Factory New to Minimal Wear, and in StatTrak™. Marketplace listings start at $2,400.