- Cost
- $36.69
- EV
- 57%
- $20.93
- Profit
- −$18.49
- after fee
- Win %
- 0%
- to profit
Avg float ≤ 0.116 (needs < 0.117)5 outcomesActive market
Reverse trade-up finder
Trade up to MAG-7 | BI83 Spectrum
10 Mil-Spec Grade skins from the Operation Riptide Case collection can become MAG-7 | BI83 Spectrum. 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 MAG-7 | BI83 Spectrum needs an average normalized input float below 0.1167 (output float 0.000–0.070). Best chance per contract: 20.0%.
- Cost
- $16.40
- EV
- 75%
- $12.34
- Profit
- −$5.67
- after fee
- Win %
- 32%
- to profit
Avg float ≤ 0.115 (needs < 0.117)10 outcomesActive market
- Cost
- $7.01
- EV
- 48%
- $3.36
- Profit
- −$4.09
- after fee
- Win %
- 10%
- to profit
Avg float ≤ 0.116 (needs < 0.117)10 outcomesActive market
- Cost
- $7.10
- EV
- 45%
- $3.22
- Profit
- −$4.30
- after fee
- Win %
- 10%
- to profit
Avg float ≤ 0.117 (needs < 0.117)10 outcomesActive market
- Cost
- $7.25
- EV
- 45%
- $3.30
- Profit
- −$4.38
- after fee
- Win %
- 10%
- to profit
Avg float ≤ 0.116 (needs < 0.117)10 outcomesActive market
- Cost
- $10.48
- EV
- 94%
- $9.89
- Profit
- −$1.88
- after fee
- Win %
- 24%
- to profit
Avg float ≤ 0.116 (needs < 0.117)10 outcomesActive market
Required input float for each MAG-7 | BI83 Spectrum wear
| Wear | Output float | Avg normalized input float | Cheapest route | Best chance |
|---|---|---|---|---|
| Factory New | 0.000–0.070 | < 0.1167 | $7.01 | 20.0% |
| Minimal Wear | 0.070–0.150 | ≥ 0.1167 and < 0.2500 | no priced route | — |
| Field-Tested | 0.150–0.380 | ≥ 0.2500 and < 0.6333 | $1.46 | 20.0% |
| Well-Worn | 0.380–0.450 | ≥ 0.6333 and < 0.7500 | no priced route | — |
| Battle-Scarred | 0.450–0.600 | ≥ 0.7500 and any | no priced route | — |
The average is over every input's float normalized to its own range. Output float = 0.00 + average × 0.60.
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.