How to Trade Up to AK-47 | B the Monster
AK-47 | B the Monster drops from Budapest 2025 Overpass Souvenir Package, Budapest 2025 Overpass Souvenir Highlight Package, so any contract that can produce it needs 10 Classified skins from those same cases. Here is what the contract costs, what else it can land on, and the input float you need for each exterior.
- Odds per contract
- 100% 1 in 1
- Contract cost from
- $169.10 10× cheapest input
- Expected value
- $52.44 mean of the outcome pool
- Margin
- -69% $-116.66 per contract
Buying is cheaper than rolling. A Battle-Scarred AK-47 | B the Monster costs $52.44 outright, against $169.10 for a contract with a 100% chance of producing one. Trade up for the process, not the value.
The contract
10 inputs, all Classified, all from Budapest 2025 Overpass Souvenir Package or Budapest 2025 Overpass Souvenir Highlight Package. Concentrating every input in one case is what keeps your odds at 100% — mixing cases splits the probability across both pools and lowers your chance at AK-47 | B the Monster specifically.
What else this contract can land on
A contract from Budapest 2025 Overpass Souvenir Package / Budapest 2025 Overpass Souvenir Highlight Package draws uniformly from every Covert skin in the pool, so AK-47 | B the Monster is one of 1 equally likely results. These are the other 0.
| Outcome | Odds | Cheapest price |
|---|---|---|
| AK-47 | B the Monsteryour target | 100% | $52.44 |
Input float for each exterior
CS2 normalises float across a trade-up: each input’s float becomes a 0–1 position inside its own range, those are averaged, and the average is applied to AK-47 | B the Monster’s range of 0.00–0.80. To land a given exterior, your ten inputs must average the normalised float below.
| Target exterior | Output float | Required avg. input float |
|---|---|---|
| Factory New | 0.0350 | 0.0438 |
| Minimal Wear | 0.1100 | 0.1375 |
| Field-Tested | 0.2650 | 0.3313 |
| Well-Worn | 0.4150 | 0.5188 |
| Battle-Scarred | 0.6250 | 0.7813 |
“Not reachable” means AK-47 | B the Monster’s own float range never enters that exterior band — no combination of inputs can produce it.
What AK-47 | B the Monster is worth right now
Worth comparing against the contract cost above before you commit: buying the skin outright is frequently cheaper than rolling for it.
| Exterior | Price | vs. contract cost |
|---|---|---|
| Battle-Scarred | $52.44 | −$116.66 |
| Well-Worn | $82.08 | −$87.02 |
| Field-Tested | $91.12 | −$77.98 |
| Minimal Wear | $162.28 | −$6.82 |
| Factory New | $413.99 | +$244.89 |
Build this contract
Price a full ten-slot contract against live inputs, set your own float values, and see the outcome odds update as you go.