- Cost
- $27.24
- EV
- 44%
- $11.85
- Profit
- −$16.93
- after fee
- Win %
- 20%
- to profit
Avg float ≤ 0.093 (needs < 0.093)5 outcomesActive market
Reverse trade-up finder
Trade up to M249 | Aztec
10 Mil-Spec Grade skins from the CS20 Case collection can become M249 | Aztec. Pick a wear to see every realistic route, its odds, cost and the input float it needs.
Prices as of Oct 27, 2026Steam Community Market averages · snapshot 2026-10-27 10:25 UTC
Factory New M249 | Aztec needs an average normalized input float below 0.0933 (output float 0.000–0.070). Best chance per contract: 20.0%.
- Cost
- $8.28
- EV
- 47%
- $3.86
- Profit
- −$4.93
- after fee
- Win %
- 8%
- to profit
Avg float ≤ 0.092 (needs < 0.093)10 outcomesActive market
- Cost
- $7.17
- EV
- 33%
- $2.39
- Profit
- −$5.09
- after fee
- Win %
- 4%
- to profit
Avg float ≤ 0.093 (needs < 0.093)10 outcomesActive market
- Cost
- $7.29
- EV
- 40%
- $2.91
- Profit
- −$4.76
- after fee
- Win %
- 4%
- to profit
Avg float ≤ 0.092 (needs < 0.093)10 outcomesActive market
- Cost
- $13.43
- EV
- 67%
- $8.98
- Profit
- −$5.62
- after fee
- Win %
- 20%
- to profit
Avg float ≤ 0.093 (needs < 0.093)10 outcomesSome thin prices
- Cost
- $62.27
- EV
- 47%
- $29.27
- Profit
- −$36.81
- after fee
- Win %
- 23%
- to profit
Avg float ≤ 0.092 (needs < 0.093)9 outcomesSome thin prices
Required input float for each M249 | Aztec wear
| Wear | Output float | Avg normalized input float | Cheapest route | Best chance |
|---|---|---|---|---|
| Factory New | 0.000–0.070 | < 0.0933 | $7.17 | 20.0% |
| Minimal Wear | 0.070–0.150 | ≥ 0.0933 and < 0.2000 | no priced route | — |
| Field-Tested | 0.150–0.380 | ≥ 0.2000 and < 0.5067 | $1.04 | 20.0% |
| Well-Worn | 0.380–0.450 | ≥ 0.5067 and < 0.6000 | no priced route | — |
| Battle-Scarred | 0.450–0.750 | ≥ 0.6000 and any | $1.05 | 20.0% |
The average is over every input's float normalized to its own range. Output float = 0.00 + average × 0.75.
Other trade-up targets in this collection
How CS2 trade-up contracts work
Inputs & odds
10 skins of one rarity become 1 skin of the next rarity (Mil-Spec → Restricted → Classified → Covert). Since the October 2025 update, 5 Covert skins can become a knife or gloves from those skins' case. Each input collection gets its share of the odds (inputs from it ÷ total), split evenly across that collection's next-tier skins.
Float math
Every input float is normalized to its own skin's range — (float − min) ÷ (max − min) — and averaged. Each output's float is its min + average × (max − min), so a restricted-range skin like 0.10–0.20 can only land in the wears its range allows.
Prices, fees & freshness
Values are Steam Community Market averages from the snapshot dated on each page. Profit subtracts the ~13% Steam seller fee. StatTrak™ inputs give StatTrak™ outputs (knives only — gloves have no StatTrak™). Map collections outside weapon cases aren't in DropLabz's dataset yet.
Pick the skin you want in the reverse trade-up finder, check any contract in the trade-up calculator, or compare with opening cases on case ROI and knife odds.