About ★ M9 Bayonet | Doppler
The ★ M9 Bayonet | Doppler is the workhorse of high-end Doppler knife collecting. The M9 Bayonet has been part of Counter-Strike since the original drop pool in August 2013, and the Doppler finish — first available in 2015 — quickly elevated this military-issue blade design into one of the most collected knives in the game.
Design
The M9's straight, full-tang blade is geometrically simple — a near-perfect canvas for the marbled Doppler finish. Where Karambit Doppler curves emphasize the gradient and Butterfly Knife showcases it through animation, M9 displays the Doppler in its compositionally cleanest form. The blade catches light evenly across its length, making pattern variations particularly visible.
Phase Distribution
FN pricing by phase: Sapphire ~$8,200, Ruby ~$7,400, Black Pearl ~$6,100, Phase 2 ~$3,200, Phase 4 ~$2,800. M9 Doppler tends to trade at a 10-15% discount to Karambit Doppler equivalents — not because it's less desirable, but because supply is wider. Active FN supply across all phases: ~5,200 specimens worldwide.
Market Position
The M9 Doppler is the "best value-for-money" entry into top-tier knife collecting. Collectors building toward a Karambit Doppler often own an M9 first, treating it as a stepping stone. For traders, M9 Doppler offers similar appreciation profiles to Karambit (~12-18% per year through 2025-2026) at meaningfully lower entry capital.
