The M9 Bayonet is the knife a lot of players dream about before they ever own one. It has that fixed combat blade, a big serrated spine and an inspect animation that shows off the finish from every angle. In CS2 it sits in the upper-mid of the knife lineup on price, which makes it a sweet spot: it looks expensive without always costing what a Karambit or Butterfly does. This guide walks through its finish range, the standout skins and roughly what each tier runs in mid-2026. Treat every number as a ballpark, prices move with float, pattern and the platform you buy on.
Like all CS2 knives, the M9 Bayonet shares its skin pool with the other vanilla blades, so you will recognize most of these finishes. What changes is how each one wears on the M9's wide blade. A few patterns that look plain on a small knife really pop here.
If you want to compare every finish, float band and the current spread across the whole knife category, the wiki keeps a sortable list here: steamdb.com/en/skins/cs2/knives. It is the fastest way to sanity-check a seller's asking price before you commit.
A handful of M9 finishes are worth calling out because they hold value and stay in demand:
The table below is a rough snapshot as of June 2026. Floors moved a fair bit after the October 2025 trade-up update let players craft a knife or gloves from five Coverts, and many knife floors dropped roughly 20-50% from their old highs. So if you saw older guides quoting bigger numbers, that is why these look gentler.
| Tier | Example finishes | Rough price (USD) | Best for |
|---|---|---|---|
| Entry | Night, Safari Mesh, Boreal Forest | from ~$140 | First knife, just want the M9 model |
| Mid | Blue Steel, Stained, Ultraviolet | ~$180-280 | A clean look without the grail tax |
| Upper-mid | Slaughter, Tiger Tooth, Autotronic | ~$300-450 | Flashy inspect, still reasonable |
| Premium | Doppler, Marble Fade, Fade | ~$450-900 | Collectors and long-term holders |
| Grail | Sapphire/Ruby Doppler, blue Case Hardened | $1,000s | Pattern hunters with deep pockets |
A few buying notes. Float drives a big chunk of the price within any single finish: a Factory New Doppler costs more than a Field-Tested one, and on fades and case hardened the visible pattern can matter more than the wear. Platform matters too, the Steam Community Market, third-party marketplaces and direct trades all sit at different price points and have different fees. Always cross-check the exact pattern and float you are quoted, and remember a low headline price often hides a worse pattern. Buy the knife you actually want to look at for hundreds of hours, not just the cheapest entry into the model.