M9 Bayonet | Gamma Doppler

The M9 Bayonet | Gamma Doppler is a standout knife skin for CS2, part of the long-running Doppler line that gained popularity for its shifting, crystalline color effects. In CS:GO and later in CS2, Doppler-pattern finishes became a favorite among collectors due to the dramatic “phase” visuals and high demand for specific color presentations. This particular version is identified by its Gamma Doppler finish and CS2-compatible model styling.

As a Covert rarity knife, the M9 Bayonet | Gamma Doppler is widely considered one of the more coveted cosmetic items in the game. Covert-tier skins are typically far rarer than lower tiers, and their appearance is strongly dependent on container contents and drop rules. While exact “drop chance” values aren’t publicly guaranteed for every case pull, the practical expectation is that obtaining this knife from standard case sources is uncommon compared to most weapon skins.

You can find this skin in multiple wear conditions, including:

• Factory-New (float 0.00 – 0.01 range within the listed range)
• Minimal Wear (float typically up to the listed maximum of 0.08) This skin also supports StatTrak™, meaning you may obtain it with a kill counter. A Souvenir variant is not available, and there are no confirmed “found in collection” entries for this item.

Visually, the Gamma Doppler finish is defined by its dynamic, neon-like palette and doppler-style phase coloration. The paint index (568) and the CS2 model help define how the finish is applied across the blade, producing the signature high-contrast look that Doppler knives are known for. With a float range of 0 – 0.08, cleaner wear states (especially Factory-New and low-float Minimal Wear) are generally preferred for the strongest visual impact.

To obtain it, the M9 Bayonet | Gamma Doppler is available through CS2 cases, specifically the Gamma 2 Case and Gamma Case. Since it’s not tied to any collection-based availability, these containers are the primary in-game source for players seeking this exact skin. As a result, it tends to be associated with higher participation value during Gamma-case openings.

In the CS2 community, Doppler knives—particularly Bayonet variants—are often viewed as prestige items due to their bold visual identity and long-term popularity. The M9 Bayonet itself is known for its sleek silhouette and classic handling animation, and when paired with the Gamma Doppler finish, it becomes a highly sought-after choice for players aiming for a standout, high-rarity knife look.