How to Trade Up to FAMAS | 2A2F
FAMAS | 2A2F drops from Austin 2025 Train Souvenir Package, Austin 2025 Train Souvenir Highlight Package, Budapest 2025 Train Souvenir Package, Budapest 2025 Train Souvenir Highlight Package, so any contract that can produce it needs 10 Industrial Grade 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
- 25% 1 in 4
- Contract cost from
- $0.30 10× cheapest input
- Expected value
- $0.16 mean of the outcome pool
- Margin
- -46.7% $-0.14 per contract
Buying is cheaper than rolling. A Battle-Scarred FAMAS | 2A2F costs $0.16 outright, against $0.30 for a contract with a 25% chance of producing one. Trade up for the process, not the value.
The contract
10 inputs, all Industrial Grade, all from Austin 2025 Train Souvenir Package or Austin 2025 Train Souvenir Highlight Package or Budapest 2025 Train Souvenir Package or Budapest 2025 Train Souvenir Highlight Package. Concentrating every input in one case is what keeps your odds at 25% — mixing cases splits the probability across both pools and lowers your chance at FAMAS | 2A2F specifically.
P90 | Straight Dimes
AUG | Steel Sentinel
P90 | Straight Dimes
P90 | Straight Dimes
CZ75-Auto | Copper Fiber
CZ75-Auto | Copper Fiber
P250 | Constructivist
AUG | Steel Sentinel
CZ75-Auto | Copper Fiber
Galil AR | Green Apple
Nova | Rain Station
AUG | Steel Sentinel12 further eligible inputs are available — open the reverse trade-up calculator to price a full contract against your own inventory.
What else this contract can land on
A contract from Austin 2025 Train Souvenir Package / Austin 2025 Train Souvenir Highlight Package / Budapest 2025 Train Souvenir Package / Budapest 2025 Train Souvenir Highlight Package draws uniformly from every Mil-Spec Grade skin in the pool, so FAMAS | 2A2F is one of 4 equally likely results. These are the other 3.
| Outcome | Odds | Cheapest price |
|---|---|---|
| Glock-18 | Green Line | 25% | $0.19 |
| XM1014 | Run Run Run | 25% | $0.16 |
| FAMAS | 2A2Fyour target | 25% | $0.16 |
| UMP-45 | Late Night Transit | 25% | $0.14 |
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 FAMAS | 2A2F’s range of 0.00–0.86. 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 | 0.0407 |
| Minimal Wear | 0.1100 | 0.1279 |
| Field-Tested | 0.2650 | 0.3081 |
| Well-Worn | 0.4150 | 0.4826 |
| Battle-Scarred | 0.6550 | 0.7616 |
“Not reachable” means FAMAS | 2A2F’s own float range never enters that exterior band — no combination of inputs can produce it.
What FAMAS | 2A2F 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 | $0.16 | −$0.14 |
| Well-Worn | $0.19 | −$0.11 |
| Field-Tested | $0.23 | −$0.07 |
| Minimal Wear | $0.89 | +$0.59 |
| Factory New | $4.23 | +$3.93 |
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.