2021 Train Collection: skins, trade up odds & float ranges
The 2021 Train Collection has 17 skins across 4 rarities. Its rarest skins are Glock-18 | Gamma Doppler and M4A4 | The Coalition. Below: every skin with its float range, all trade up paths with exact odds, and the best contracts at today’s prices.
- Skins: 7 Mil-Spec, 5 Restricted, 3 Classified, 2 Covert.
- Trade up paths: Mil-Spec → Restricted, Restricted → Classified, Classified → Covert.
- Knife trade up: not possible – this is not a weapon case collection, so it has no knife or glove pool.
Best 2021 Train Collection trade ups right now
Every contract of 10 identical inputs from this collection (5 for Covert → knife), priced with today’s market data.
Covert skins (2)
| Skin | Float range | Wears | Lowest price | |
|---|---|---|---|---|
 | Glock-18 | Gamma Doppler | 0.00 – 0.50 | FN MW FT WW BS | … |
 | M4A4 | The Coalition | 0.00 – 1.00 | FN MW FT WW BS | … |
Classified skins (3)
| Skin | Float range | Wears | Lowest price | |
|---|---|---|---|---|
 | FAMAS | Meltdown | 0.00 – 0.40 | FN MW FT WW | … |
 | MAC-10 | Propaganda | 0.00 – 0.62 | FN MW FT WW BS | … |
 | USP-S | Whiteout | 0.06 – 0.80 | FN MW FT WW BS | … |
Restricted skins (5)
| Skin | Float range | Wears | Lowest price | |
|---|---|---|---|---|
 | AWP | POP AWP | 0.00 – 0.44 | FN MW FT WW | … |
 | CZ75-Auto | Syndicate | 0.00 – 0.70 | FN MW FT WW BS | … |
 | P2000 | Space Race | 0.00 – 0.60 | FN MW FT WW BS | … |
 | MP5-SD | Autumn Twilly | 0.00 – 0.58 | FN MW FT WW BS | … |
 | Nova | Red Quartz | 0.00 – 0.40 | FN MW FT WW | … |
Mil-Spec skins (7)
| Skin | Float range | Wears | Lowest price | |
|---|---|---|---|---|
 | AUG | Amber Fade | 0.00 – 0.40 | FN MW FT WW | … |
 | Desert Eagle | Sputnik | 0.00 – 0.50 | FN MW FT WW BS | … |
 | M4A1-S | Fizzy POP | 0.00 – 0.57 | FN MW FT WW BS | … |
 | R8 Revolver | Blaze | 0.00 – 0.08 | FN MW | … |
 | SSG 08 | Spring Twilly | 0.00 – 0.55 | FN MW FT WW BS | … |
 | Tec-9 | Safety Net | 0.00 – 0.60 | FN MW FT WW BS | … |
 | UMP-45 | Full Stop | 0.00 – 0.60 | FN MW FT WW BS | … |
2021 Train Collection trade up odds
With all 10 inputs from this collection, each next-rarity skin has an equal chance. The “max average float” columns show the highest average normalised input float that still gives that wear.
10 Mil-Spec → Restricted
| Outcome | Chance | Max avg for FN | Max avg for MW |
|---|---|---|---|
| AWP | POP AWP | 20% | ≤ 0.1591 | ≤ 0.3409 |
| CZ75-Auto | Syndicate | 20% | ≤ 0.1000 | ≤ 0.2143 |
| P2000 | Space Race | 20% | ≤ 0.1167 | ≤ 0.2500 |
| MP5-SD | Autumn Twilly | 20% | ≤ 0.1207 | ≤ 0.2586 |
| Nova | Red Quartz | 20% | ≤ 0.1750 | ≤ 0.3750 |
10 Restricted → Classified
| Outcome | Chance | Max avg for FN | Max avg for MW |
|---|---|---|---|
| FAMAS | Meltdown | 33.3% | ≤ 0.1750 | ≤ 0.3750 |
| MAC-10 | Propaganda | 33.3% | ≤ 0.1129 | ≤ 0.2419 |
| USP-S | Whiteout | 33.3% | ≤ 0.0135 | ≤ 0.1216 |
10 Classified → Covert
| Outcome | Chance | Max avg for FN | Max avg for MW |
|---|---|---|---|
| Glock-18 | Gamma Doppler | 50% | ≤ 0.1400 | ≤ 0.3000 |
| M4A4 | The Coalition | 50% | ≤ 0.0700 | ≤ 0.1500 |
2021 Train Collection FAQ
What skins are in the 2021 Train Collection?
The 2021 Train Collection contains 17 skins: Covert – Glock-18 | Gamma Doppler, M4A4 | The Coalition; Classified – FAMAS | Meltdown, MAC-10 | Propaganda, USP-S | Whiteout; Restricted – AWP | POP AWP, CZ75-Auto | Syndicate, P2000 | Space Race, MP5-SD | Autumn Twilly, Nova | Red Quartz; Mil-Spec – AUG | Amber Fade, Desert Eagle | Sputnik, M4A1-S | Fizzy POP, R8 Revolver | Blaze, SSG 08 | Spring Twilly, Tec-9 | Safety Net, UMP-45 | Full Stop.
What are the trade up odds in the 2021 Train Collection?
With 10 inputs from the 2021 Train Collection, every skin of the next rarity has an equal chance: Mil-Spec → Restricted 20% each; Restricted → Classified 33.3% each; Classified → Covert 50% each. Mixing in other collections lowers these odds in proportion to the inputs you replace.
Can you trade up 2021 Train Collection Covert skins into a knife?
No. Only weapon case collections have a knife and glove pool, and the 2021 Train Collection is not a case collection.
How do I find a profitable 2021 Train Collection trade up?
Use the live table above: it prices every contract of this collection with today’s market data and ranks them by ROI. Open any of them in the CS2TradeUp.gg calculator to change floats, mix collections, and set your marketplace fee.
