- Cost
- $61.83
- EV
- 64%
- $39.69
- Profit
- −$27.32
- after fee
- Win %
- 33%
- to profit
Avg float ≤ 0.099 (needs < 0.100)3 outcomesActive market
Reverse trade-up finder
Trade up to M4A1-S | Leaded Glass
10 Restricted skins from the Spectrum 2 Case collection can become M4A1-S | Leaded Glass. 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 M4A1-S | Leaded Glass needs an average normalized input float below 0.1000 (output float 0.000–0.070). Best chance per contract: 33.3%.
- Cost
- $71.34
- EV
- 67%
- $47.44
- Profit
- −$30.09
- after fee
- Win %
- 37%
- to profit
Avg float ≤ 0.099 (needs < 0.100)6 outcomesActive market
- Cost
- $29.50
- EV
- 52%
- $15.45
- Profit
- −$16.07
- after fee
- Win %
- 3%
- to profit
Avg float ≤ 0.100 (needs < 0.100)6 outcomesActive market
- Cost
- $31.48
- EV
- 43%
- $13.56
- Profit
- −$19.69
- after fee
- Win %
- 3%
- to profit
Avg float ≤ 0.100 (needs < 0.100)6 outcomesActive market
- Cost
- $32.16
- EV
- 42%
- $13.35
- Profit
- −$20.55
- after fee
- Win %
- 3%
- to profit
Avg float ≤ 0.100 (needs < 0.100)6 outcomesActive market
- Cost
- $35.96
- EV
- 59%
- $21.10
- Profit
- −$17.61
- after fee
- Win %
- 3%
- to profit
Avg float ≤ 0.100 (needs < 0.100)6 outcomesSome thin prices
Required input float for each M4A1-S | Leaded Glass wear
| Wear | Output float | Avg normalized input float | Cheapest route | Best chance |
|---|---|---|---|---|
| Factory New | 0.000–0.070 | < 0.1000 | $29.50 | 33.3% |
| Minimal Wear | 0.070–0.150 | ≥ 0.1000 and < 0.2143 | $10.54 | 33.3% |
| Field-Tested | 0.150–0.380 | ≥ 0.2143 and < 0.5429 | $5.71 | 33.3% |
| Well-Worn | 0.380–0.450 | ≥ 0.5429 and < 0.6429 | $6.16 | 33.3% |
| Battle-Scarred | 0.450–0.700 | ≥ 0.6429 and any | $5.37 | 33.3% |
The average is over every input's float normalized to its own range. Output float = 0.00 + average × 0.70.
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.