★ M9 Bayonet | Doppler Phase 4 (Factory New)

The ★ M9 Bayonet | Doppler Phase 4 (Factory New, FN) is a Covert ★ knife finish with a deep blue marbled pattern swirled over a black base. Factory New is the sharpest-looking grade on offer, and it's where that blue marbling reads at its most vivid. Most players just call it the m9 doppler phase 4 — or simply the m9 phase 4.

Design

Phase 4 pairs a mostly blue marbled swirl with a black undertone, giving the blade a moody, saturated look next to the lighter numbered phases. It carries the flavor line "Getting lost in its color can prove fatal."

★ M9 Bayonet | Doppler Phase 4 (Factory New) Float and Wear

Doppler is float-capped between 0.00 and 0.08, so only Factory New and Minimal Wear (MW) exist — this finish never ages past a near-mint look regardless of copy. Factory New sits at the very bottom of that range, keeping the blue marbling crisp and the black base free of any haze. In float terms, this grade runs 0.00–0.07.

M9 Bayonet | Doppler Phase 4 Rarity

Rarity: Covert ★ — a rare special ("knife") item, the gold-tier drop that sits above every ordinary weapon grade pulled from a case. That tier alone makes it a scarce pull, independent of which Doppler phase actually comes out.

M9 Bayonet | Doppler Phase 4 Case and Collection

This phase isn't part of a single collection — it opens from the Chroma Case, the Chroma 2 Case, and the Chroma 3 Case. Across the board, the rare-special ("knife") tier lands at roughly 0.26% per case opening, so most buyers pick up a specific phase on the market rather than gamble on the full Doppler roll.

M9 Bayonet Doppler Phases

Doppler splits into several phases, and this listing is locked to Phase 4. The two gem phases — Ruby (red), Sapphire (blue), and Black Pearl (iridescent) — sit well above the numbered Phase 1-4 in price, but among the numbered set, buyers gravitate toward the most saturated looks, and Phase 4's deep blue is one of the two most sought after alongside Phase 2's pink. Whichever phase a copy lands on is fixed for good — it never shifts with wear or trading hands.

StatTrak & Souvenir

A StatTrak™ version of this knife exists and tracks confirmed kills permanently through every trade or sale. There's no Souvenir version at all — knives are never included in Major-tournament souvenir packages, regardless of case or phase.

M9 Bayonet | Doppler Phase 4 Price

Factory New sits above Minimal Wear on this phase's own ladder, and Phase 4 as a whole lands in the high-end tier for this knife — a thin market priced alongside the M9 Bayonet's rarer finishes, well below the gem phases but ahead of most numbered-phase alternatives. It's available to buy on Skin.Land with instant delivery and no hidden fees. Prices for the phase 4 m9 track the exterior, the float and whether the copy carries StatTrak™, so check the live number on this page.

FAQ

What case is the M9 Bayonet Doppler Phase 4 in?

It opens from the Chroma Case, the Chroma 2 Case, and the Chroma 3 Case rather than one single box. Since Doppler drops as a random phase from those cases, most buyers skip the gamble and buy the exact Phase 4 look directly on the market instead.

Is Phase 4 the best M9 Bayonet Doppler phase?

Not the outright grail — the gem phases Ruby, Sapphire, and Black Pearl sit well above every numbered phase in price. But among the numbered Phase 1-4 set, Phase 4's deep, saturated blue is one of the two most favored looks, alongside Phase 2. The phase is fixed per copy and never changes with wear.

Does the M9 Bayonet Doppler Phase 4 have StatTrak?

Yes, a StatTrak™ version exists with a permanent confirmed-kill counter that follows the knife through trades and sales. There's no Souvenir version, though — knives are simply never part of Major-tournament souvenir packages, no matter the phase or case.