Gamma 2 Case: Skins, Odds & Value
Table of Contents
The Gamma 2 Case CS2 is an old case with a strong knife pool, two expensive Covert weapon finishes, and poor opening economics. You usually lose money opening it. Its expected value, meaning the average value returned across a huge number of opens, sits well below the cost of a case and key. The 0.26% rare-special chance is real, but it is only 1 in 385 opens before the exact knife, finish, float, and Doppler phase are considered.
A float is the number that sets a skin’s wear condition. Lower floats are cleaner. Factory New runs from 0.00 to 0.07, while Battle-Scarred starts at 0.45. A pattern index is different, it changes the visual layout on finishes such as Doppler, Case Hardened, or Fade.
Methodology: item rarity, float caps, and collection details come from the CS2 item database. Market levels are approximate as of 2026.
What Drops From This Case
The Gamma 2 Case has the standard weapon-case rarity distribution. Covert is the highest rarity for ordinary weapon skins. Knives sit above it as Extraordinary rare-special items.
The two Covert finishes split the 0.64% tier, so either individual red is roughly a 0.32% result before StatTrak and wear are considered. The three Classified outcomes are roughly 1.067% each if the tier is weighted evenly.
Is It Worth Opening? Expected Value & ROI
Opening once costs about $5.5: a case at about $3.0 plus a $2.49 key.
That key figure is the fixed US in-client store price before tax. It is not a global market price. Regional pricing and tax can change what a player actually pays.
The important number is the return rate. Gamma 2 openings return roughly 47% of the money spent on average, or about $2.6 in item value from a $5.5 open. The average loss is about 53%, which means the estimated long-run ROI is about -53%.
The rare knife hit drives attention, but it does not make the average opening profitable. Most results are Mil-Spec skins, and the usual blue does not cover much of the opening cost.
Buying the exact finish you want is normally the more controlled route. For holders, sealed Gamma 2 Cases are a different decision from opening them. A sealed case has constrained supply and can be sold as an item. Once opened, that case becomes a skin with a 79.92% chance of landing in the lowest rarity tier.
Rare Special Items
The rare-special tier lands at 0.26%, or 1 in 385 opens. These knives are Extraordinary rarity, not Covert. The five examples below are the major chase outcomes, but they represent only part of the full knife pool.
★ M9 Bayonet | Gamma Doppler Emerald
The M9 Emerald is the headline Gamma 2 pull, with market levels reaching about $8.4K for strong examples. Its 0.000–0.080 float cap means Factory New and a narrow slice of Minimal Wear are possible, but no worse wear tier can exist.
An Emerald is the rare green Doppler outcome. Valve has never published an authoritative Emerald rate, so percentage claims around individual Doppler gems should be treated as community estimates rather than fixed odds.
Sell ★ M9 Bayonet | Gamma Doppler Emerald Buy ★ M9 Bayonet | Gamma Doppler Emerald
★ Karambit | Gamma Doppler Emerald
The Karambit Emerald combines one of CS2’s most liquid knife models with the all-green Gamma Doppler gem finish. Strong copies can reach roughly $7K+, but float quality and buyer depth matter a lot at that level.
Doppler phases are visual finish variants determined by the pattern seed. Valve publishes no phase rates, but Emerald is the phase buyers pay the biggest premium for.
Sell ★ Karambit | Gamma Doppler Emerald Buy ★ Karambit | Gamma Doppler Emerald
★ Bayonet | Gamma Doppler Emerald
The Bayonet version carries the same deep-green Emerald finish at a more accessible level than the M9 or Karambit. Price bands can reach roughly $3K, especially for clean Factory New examples.
The narrow 0.000–0.080 cap keeps the finish visually clean. That makes float differences smaller than on broad-cap skins, but near-zero floats can still matter to collectors.
Sell ★ Bayonet | Gamma Doppler Emerald Buy ★ Bayonet | Gamma Doppler Emerald
★ Flip Knife | Gamma Doppler Emerald
The Flip Emerald is the lower-entry version of Gamma 2’s green gem chase. It can approach roughly $1.8K, while still carrying the same restricted 0.000–0.080 float range as the other Emerald knives.
For a seller, Emeralds deserve an extra inspection before accepting a generic market comparison. Float, exact finish classification, and current buyer demand can create a meaningful gap between a quick-sale price and a patient listing price.
Sell ★ Flip Knife | Gamma Doppler Emerald Buy ★ Flip Knife | Gamma Doppler Emerald
★ Karambit | Autotronic
Autotronic is not a Doppler, but the Karambit model keeps it near the top of the Gamma 2 knife pool. Better-condition examples can reach roughly $1K+, and the 0.000–0.850 float cap allows every standard wear tier.
Unlike gloves, knives can have StatTrak variants. A StatTrak knife tracks confirmed kills and can change demand, especially for clean wears and popular models.
Sell ★ Karambit | Autotronic Buy ★ Karambit | Autotronic
Top Gamma 2 Drops at a Glance
Ranked Gamma 2 Case CS2 Skins
1. AK-47 | Neon Revolution
Neon Revolution is the flagship weapon finish from the case. It is one of only two Covert outcomes, making its base drop chance roughly 0.32% per opening before the extra split from StatTrak and wear.
Its 0.000–0.800 float cap reaches every wear tier, including Battle-Scarred. Clean Factory New copies tend to command the most attention, but the skin’s main structural value comes from its status as a five-Covert knife trade-up input. That gives the AK demand beyond normal play-skin interest.
For a cash seller, compare the float and StatTrak status first. A low-float Factory New or StatTrak copy should not be treated like a generic worn example.
Sell AK-47 | Neon Revolution Buy AK-47 | Neon Revolution
2. FAMAS | Roll Cage
Roll Cage is the other Gamma 2 Covert and shares the same approximate 0.32% individual opening chance. Its full 0.000–1.000 float range means every wear tier exists, from Factory New through Battle-Scarred.
The skin has a wider condition spread than many red finishes. Normal copies often sit around the same broad level as Neon Revolution, while Factory New, StatTrak, and unusual floats can push much higher. It also works as a Covert trade-up ingredient, which has changed how many traders value clean copies.
Sell FAMAS | Roll Cage Buy FAMAS | Roll Cage
Sell your CS2 skins for real money.
3. Tec-9 | Fuel Injector
Fuel Injector is a Classified finish with a clean industrial color scheme that holds up across wear levels. It is one of three pink outcomes, putting an individual pull around 1.067% under equal weighting within the tier.
The 0.000–1.000 cap supports all five wear tiers. More importantly, Classified skins sit one tier below the two Gamma 2 Coverts in trade-up crafting, so clean examples have demand from players and contract builders.
Sell Tec-9 | Fuel Injector Buy Tec-9 | Fuel Injector
4. MP9 | Airlock
Airlock is one of the better-known MP9 Classified finishes from an older case. The sharp white, orange, and red layout stays recognizable even as the float rises, although clean examples naturally attract more interest.
Its 0.000–1.000 cap means the full condition ladder is available. A low float can matter for trade-up planning because the output float is based on the input floats, not just the item names.
Sell MP9 | Airlock Buy MP9 | Airlock
5. AUG | Syd Mead
Syd Mead is the third Classified result and has a futuristic panel design that looks strongest in lower wear. The 0.000–0.800 float cap still reaches Battle-Scarred, so worn examples are possible.
As a Classified skin, it can feed Gamma 2 Covert trade-ups. That practical use matters more than the case-opening odds alone. Sellers should separate lower-float copies from generic high-wear stock before deciding whether immediate liquidity is the right move.
Sell AUG | Syd Mead Buy AUG | Syd Mead
6. Desert Eagle | Directive
Directive is a Restricted Desert Eagle finish with a busy orange-and-black technical layout. Desert Eagle skins have a broad player base, so the weapon model helps its liquidity more than most Restricted drops.
The float starts at 0.060, so only the 0.060–0.070 slice of Factory New is possible. Minimal Wear, Field-Tested, Well-Worn, and Battle-Scarred are all reachable. StatTrak versions and the narrow Factory New availability create the biggest condition gaps.
Sell Desert Eagle | Directive Buy Desert Eagle | Directive
7. Glock-18 | Weasel
Weasel is a Restricted Glock-18 skin with a full 0.000–1.000 float range. It is a common enough purple result that it should be valued as a play skin first, not as a rare opening recovery.
StatTrak is available, meaning the weapon records kills while equipped. A clean StatTrak Glock can have a different buyer pool from ordinary worn stock, while standard versions are usually better candidates for a fast cash-out.
Sell Glock-18 | Weasel Buy Glock-18 | Weasel
8. SG 553 | Triarch
Triarch sits in the middle of the Restricted tier. Its geometric style is distinct, but its value is usually driven by wear, StatTrak status, and the general supply created by years of Gamma 2 openings.
Every condition is obtainable because the float cap runs from 0.000 to 1.000. This is usually a practical keeper for players who use the SG 553, rather than an item worth holding solely for scarcity.
Sell SG 553 | Triarch Buy SG 553 | Triarch
9. SCAR-20 | Powercore
Powercore is a Restricted SCAR-20 skin with a bright, mechanical theme. The model has a smaller play-skin audience than rifles or pistols, so the finish generally relies on its tier and condition rather than broad demand.
The item can roll from Factory New to Battle-Scarred. For cash-out purposes, inspect StatTrak and float, then keep expectations tied to the Restricted tier rather than the case’s red and knife headlines.
Sell SCAR-20 | Powercore Buy SCAR-20 | Powercore
10. MAG-7 | Petroglyph
Petroglyph has a limited 0.000–0.440 float cap. That means Factory New, Minimal Wear, Field-Tested, and Well-Worn versions can exist, but Battle-Scarred cannot.
The 0.440 ceiling is useful to know because a listing cannot be genuine Battle-Scarred Petroglyph. It is still a Restricted skin with modest usual value, but its capped wear range gives collectors one concrete detail to check.
Sell MAG-7 | Petroglyph Buy MAG-7 | Petroglyph
11. Five-SeveN | Scumbria
Scumbria is a Mil-Spec finish, which means it sits in the 79.92% blue tier. It has a full 0.000–1.000 range and can appear in every condition.
Most ordinary examples are low-value opening results. The sensible selling decision is usually simple: keep it if you like the finish, or cash it out with other small skins rather than waiting for a major price move.
Sell Five-SeveN | Scumbria Buy Five-SeveN | Scumbria
12. CZ75-Auto | Imprint
Imprint is another Mil-Spec outcome. Its abstract blue design is easy to recognize, and the full float range gives buyers options across all five wear tiers.
The item has StatTrak availability, but the blue-tier odds keep standard copies inexpensive. It is a good example of why a case opening can feel better than its actual return value. A visually clean drop is not automatically a high-value drop.
Sell CZ75-Auto | Imprint Buy CZ75-Auto | Imprint
13. UMP-45 | Briefing
Briefing has a blueprint-like design and a 0.000–1.000 cap. It can roll Factory New through Battle-Scarred, though ordinary non-StatTrak examples remain low-tier market inventory.
The UMP-45 has a dedicated user base, but that does not overcome the 79.92% Mil-Spec tier odds. Treat it as a low-cost loadout option, not a reason to keep opening Gamma 2 Cases.
Sell UMP-45 | Briefing Buy UMP-45 | Briefing
14. Negev | Dazzle
Dazzle has one of the more unusual float ranges in the case. Its minimum float is 0.100, so Factory New is impossible. Minimal Wear begins at 0.07, and this skin starts inside that tier before continuing through Field-Tested, Well-Worn, and Battle-Scarred.
The cap ends at 0.650, which still allows Battle-Scarred examples. Its wear limitation is a useful verification detail, but it does not turn the skin into a major value drop.
Sell Negev | Dazzle Buy Negev | Dazzle
15. P90 | Grim
Grim is a Mil-Spec P90 finish with a darker graphic design than most of the collection. The 0.000–0.800 cap includes every standard wear tier, including Battle-Scarred.
It is one of the frequent outcomes that makes the opening math difficult. A clean StatTrak version can draw more interest than a basic copy, but the normal result is still a low-value blue that is better sold or used than treated as a long-term hold.
Sell P90 | Grim Buy P90 | Grim
Best by Statistic
For a broader comparison of older cases with premium finish pools, see the Chroma 2 Case guide. For a newer case economy with different red-skin dynamics, compare the Revolution Case guide.
Case Price & Keys
The Gamma 2 Case is generally a market-only item in 2026. Current tracking strongly indicates that it no longer appears in weekly drops, although Valve has not issued a clean item-by-item confirmation of that status.
Cash-market case levels are roughly $3, while Steam Community Market levels are often closer to $4–$5 because Steam funds are wallet-locked and fee structures differ. Those are market snapshots, not guaranteed sale prices.
The in-client key is fixed at $2.49 on the US store before tax. Keys are not a normal tradable market asset. The case is tradable, while the key is bought for opening.
Gamma 2 has supply pressure from two directions. Cases leave circulation when opened, but skins from opened cases remain available. The five-Covert trade-up route also changed demand for the case’s two reds and its Classified inputs.
Verdict
The Gamma 2 Case CS2 has a genuinely strong rare-special pool. Gamma Doppler Emeralds, Karambits, M9 Bayonets, and the two Covert weapon finishes give it lasting appeal. That does not make opening it a positive-value decision.
The numbers are straightforward. Most openings land in the Mil-Spec tier. The average return is roughly 47% of the opening cost, with an estimated long-run ROI around -53%. If you want a Neon Revolution, Roll Cage, or a specific knife finish, buying that exact item gives you control over wear, StatTrak, and budget.
For case holders, sealed supply may have its own appeal because Gamma 2 is no longer commonly available through weekly drops. For players sitting on a valuable pull, check the float, finish, and StatTrak status before selling. A quick cash-out can make sense for liquid standard skins, while exceptional Emeralds and low-float reds deserve more careful comparison.
Related reading: Clutch Case: Skins, Odds & Value, Fracture Case: Skins, Odds & Value, and Gallery Case: Skins, Odds & Value.
FAQ
What are the Gamma 2 Case odds in CS2?
Gamma 2 uses standard weapon-case odds: 79.92% Mil-Spec, 15.98% Restricted, 3.20% Classified, 0.64% Covert, and 0.26% rare special item. The rare-special knife chance is about 1 in 385 opens.
Is the Gamma 2 Case worth opening?
Usually no, if the goal is value recovery. An opening returns roughly 47% of its cost on average, creating an estimated long-run ROI of about -53%. Buying a target skin directly is normally more predictable.
What is the best Gamma 2 Case knife?
The ★ M9 Bayonet | Gamma Doppler Emerald is the top chase pull. Strong examples can reach about $8.4K, although the exact value depends on float, market demand, and liquidity.
Can Gamma 2 Case knives have StatTrak?
Yes. Knives can have StatTrak variants. Gloves cannot have StatTrak variants, though Gamma 2’s rare-special pool contains knives only.
What are the two Covert skins in Gamma 2?
The two Covert skins are AK-47 | Neon Revolution and FAMAS | Roll Cage. Together they make up the 0.64% Covert tier.
Does float affect Gamma 2 Case skin value?
Yes. Float determines wear, from Factory New at 0.00–0.07 through Battle-Scarred at 0.45–1.00. Lower floats are often more desirable, while item-specific float caps decide which wear tiers can exist.
Is the Gamma 2 Case still dropping in CS2?
Current tracking indicates that Gamma 2 is no longer appearing in weekly drops and is treated as market-only supply in 2026. Valve has not published a detailed item-by-item confirmation, so the exact drop-pool history remains partly uncertain.
