The M9 Bayonet | Doppler (Factory New) is the Swiss Army knife of CS:GO flexing—if that Swiss Army knife came with a built-in light show. This blade’s liquid-metal finish shifts between hypnotic hues like a mood ring for tryhards. The Doppler effect isn’t just a physics term here; it’s a neon rave on a combat tool. Whether you’re rocking a Ruby phase or drowning in Sapphire vibes, this knife screams, “I top-frag and have taste.” Sure, it won’t make you clutch a 1v5, but swinging this in spawn guarantees you’ll be the main character of someone’s jealousy-fueled report. Peak virtual peacocking.