What Is the M9 Bayonet in CS2?
The M9 Bayonet was one of the original six knife models added to CS:GO in August 2013, alongside the Karambit, Bayonet, Flip Knife, Gut Knife, and Huntsman Knife. It carries the Covert rarity tag (the star icon) shared by every knife model, and the same trade-up eligibility covered in our CS2 knife tier list. What sets it apart visually is the wide, straight double-edged blade with a partially serrated back edge — distinct from the Karambit's hooked curve or the Bayonet's military bayonet shape.
The M9 Bayonet's finish lineup spans both the original 2013 "vanilla" finishes (Fade, Case Hardened, Crimson Web, Slaughter, and others) and the later Chroma Case additions from January 2015 — Tiger Tooth, Marble Fade, Damascus Steel, Ultraviolet, Rust Coat, and the Doppler family. Gamma Case finishes like Lore and Autotronic followed via the 2016 Gamma Exposure update. If you're deciding between knife models, our most expensive CS2 knife skins guide shows how M9 Bayonet stacks up against Karambit, Butterfly, and the rest of the lineup.
Best M9 Bayonet Skins in CS2 (2026 Prices)
| Finish | Lowest Listed Price | Factory New Price |
|---|---|---|
| Doppler Ruby | ~$8,670 (FN only) | ~$8,670 |
| Lore | ~$410 (Battle-Scarred) | ~$1,560 |
| Autotronic | ~$640 (Battle-Scarred) | ~$1,390 |
| Fade | ~$960 (FN/MW only) | ~$960 |
| Case Hardened | ~$470 (Well-Worn) | ~$1,120 |
| Slaughter | ~$660 (Field-Tested) | ~$820 |
| Marble Fade | ~$750 (FN/MW only) | ~$750 |
| Tiger Tooth | ~$700 (FN/MW only) | ~$700 |
Prices from Skin.Land's live catalog as of 2026 — knife prices shift constantly, check the current listing on Skin.Land before buying.
M9 Bayonet | Doppler Ruby — the chase skin
Doppler Ruby is the deep-red phase of the Doppler family, and on the M9 Bayonet it's one of the rarest combinations in the game — Ruby drops at roughly 1-in-166,000 odds from Doppler-eligible cases, and the M9 Bayonet itself is already a low-probability knife pull. Factory New runs around $8,670, with the Doppler float cap meaning you'll only ever find this in Factory New or Minimal Wear condition — there's no Field-Tested or lower available. If you're balling big time and want a genuine grail piece, this is it; for everyone else, it's worth knowing this exists even if it's well outside most budgets.
M9 Bayonet | Lore — gold-toned and full of character
Lore applies a custom paint job with warm gold and yellow tones across the blade, going for a mystical, almost ancient-artifact look that stands out from the metallic and anodized finishes elsewhere on this list. It's also one of the more wear-friendly finishes here — Factory New sits around $1,560, but a Battle-Scarred copy at roughly $410 (Best buy) keeps most of the gold tones visible since the finish holds up reasonably well across the full wear range. Lore is available in all five conditions, making it one of the more flexible high-end picks if you want a distinctive look without a four-figure price tag.
M9 Bayonet | Autotronic — the cyberpunk pick
Autotronic gives off strong sci-fi vibes — a red-and-gray circuit-board pattern across the blade that looks like it belongs in a cyberpunk loadout, added via the Gamma Exposure update in June 2016. The price curve here is unusually flat: Factory New runs around $1,390, but a Battle-Scarred copy at roughly $640 (Best buy) is one of the bigger steals on this list, since the circuit pattern's high contrast doesn't fade much even at the bottom of the wear scale.
M9 Bayonet | Fade — the original rainbow blade
Fade has been a community favorite since the M9 Bayonet's original 2013 release, transitioning through purple, pink, and yellow along the blade's length. Unlike most other finishes on this list, Fade has an extremely tight float cap — it's only available in Factory New (around $960) or Minimal Wear, with no Field-Tested or lower listings to chase. That actually simplifies the buying decision: there's no wear-based discount to hunt for, so it comes down to picking between the two available conditions.
M9 Bayonet | Case Hardened — blue gem potential
Case Hardened brings the same acid-wash patina made famous by the AK-47 Case Hardened to the M9 Bayonet — a mottled mix of golds, purples, and blues where pattern index decides whether you've got a plain copy or a coveted "blue gem." Factory New runs around $1,120, but a Well-Worn copy at roughly $470 (Best buy) is one of the cheaper ways to own a Case Hardened knife, since the patina pattern itself matters more to the look than the wear level. Pattern hunters should check the inspect before buying regardless of which wear you land on.
M9 Bayonet | Slaughter — bold and budget-friendly for a vanilla finish
Slaughter brings a loud red-and-white zebra-stripe pattern to the M9 Bayonet, one of the more visually aggressive finishes from the original 2013 lineup. Factory New is around $820, while a Field-Tested copy at roughly $660 (Best buy) keeps most of the contrast intact for noticeably less. It's a solid pick if you want something eye-catching without venturing into Doppler or Lore price territory.
M9 Bayonet | Marble Fade — swirled, polished, premium
Marble Fade swirls red, blue, and white together in a polished, marbled pattern that's become one of the most recognizable knife finishes in CS2. It shares the same tight float cap as Fade and Doppler — Factory New and Minimal Wear only — and at around $750 Factory New, it's actually the cheaper of the two available conditions (MW runs higher due to demand), so there's no reason to pay extra for the "worse" wear here. Marble Fade debuted with the Chroma Case in January 2015.
M9 Bayonet | Tiger Tooth — the most accessible premium finish
Tiger Tooth applies a striking orange-and-yellow anodized finish across the blade, and it's the cheapest way to own a Chroma Case finish on the M9 Bayonet — Factory New runs around $700, actually undercutting Minimal Wear on this finish too. Like Marble Fade, it's capped to FN/MW only, which keeps the buying decision simple. If you want a knife model with history (this was one of the original six) without going into four-figure territory, Tiger Tooth is the practical entry point.
FAQ
When was the M9 Bayonet added to CS:GO?
The M9 Bayonet was introduced on August 14, 2013, as part of The Arms Deal update — one of the original six knife models alongside the Karambit, Bayonet, Flip Knife, Gut Knife, and Huntsman Knife.
Which M9 Bayonet skin is the most expensive?
Doppler Ruby is the most expensive standard M9 Bayonet finish, with Factory New copies trading around $8,670. It's also one of the rarest Doppler phase pulls in the game. For a broader comparison of high-value knives, see our guide to the most expensive CS2 knife skins.
What is the cheapest M9 Bayonet skin?
Among the finishes covered here, a Battle-Scarred Autotronic at around $640 is the most affordable way into a premium M9 Bayonet finish. For genuinely budget knife options across multiple models, see our best CS2 knives under $100 guide.
Is the M9 Bayonet a good investment?
As one of the original 2013 knife models, the M9 Bayonet has a long price history and established collector demand, which tends to make older "vanilla" finishes like Fade and Case Hardened relatively stable holds. For more on which CS2 skins tend to hold or grow in value, see our CS2 skins investment guide.
Does wear condition matter much on the M9 Bayonet?
It depends heavily on the finish. Pattern-based finishes like Case Hardened and Slaughter barely change visually across wears, so lower-wear copies are usually the better buy. Doppler, Marble Fade, Fade, and Tiger Tooth are capped to Factory New and Minimal Wear only, so wear isn't really a factor there. See our guide on how skin wear affects appearance for the general principles.
How does the M9 Bayonet compare to the Karambit?
Both launched the same day in August 2013 and share most of the same finish catalog, but the Karambit's curved blade and reverse-grip animation have made it the more iconic — and generally pricier — of the two across equivalent finishes. See our Best Karambit Skins in CS2 guide for a full breakdown of Karambit pricing.
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