How to Trade Up to MP9 | Airlock
MP9 | Airlock drops from Gamma 2 CaseGamma 2 Case, Gamma 2 Case, Gamma 2 Case, Gamma 2 Case, Gamma 2 Case, Gamma 2 Case, Gamma 2 Case, Gamma 2 Case, Gamma 2 Case, Gamma 2 Case, Gamma 2 Case, Gamma 2 Case, Gamma 2 Case, Gamma 2 Case, so any contract that can produce it needs 10 Restricted 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
- 33.33% 1 in 3
- Contract cost from
- $1170.00 10× cheapest input
- Expected value
- $1133.67 mean of the outcome pool
- Margin
- -3.1% $-36.33 per contract
Buying is cheaper than rolling. A Battle-Scarred MP9 | Airlock costs $1139.00 outright, against $1170.00 for a contract with a 33.33% chance of producing one. Trade up for the process, not the value.
The contract
Ten inputs, all Restricted, all from Gamma 2 CaseGamma 2 Case or Gamma 2 Case or Gamma 2 Case or Gamma 2 Case or Gamma 2 Case or Gamma 2 Case or Gamma 2 Case or Gamma 2 Case or Gamma 2 Case or Gamma 2 Case or Gamma 2 Case or Gamma 2 Case or Gamma 2 Case or Gamma 2 Case. Concentrating every input in one case is what keeps your odds at 33.33% — mixing cases splits the probability across both pools and lowers your chance at MP9 | Airlock specifically.
Desert Eagle | Directive
SG 553 | Triarch
Glock-18 | Weasel
Desert Eagle | Directive
Glock-18 | Weasel
Desert Eagle | Directive
SCAR-20 | Powercore
SCAR-20 | Powercore
SG 553 | Triarch
Glock-18 | Weasel
SCAR-20 | Powercore
MAG-7 | Petroglyph12 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 Gamma 2 CaseGamma 2 Case / Gamma 2 Case / Gamma 2 Case / Gamma 2 Case / Gamma 2 Case / Gamma 2 Case / Gamma 2 Case / Gamma 2 Case / Gamma 2 Case / Gamma 2 Case / Gamma 2 Case / Gamma 2 Case / Gamma 2 Case / Gamma 2 Case draws uniformly from every Classified SMG skin in the pool, so MP9 | Airlock is one of 3 equally likely results. These are the other 2.
| Outcome | Odds | Cheapest price |
|---|---|---|
| MP9 | Airlockyour target | 33.33% | $1139.00 |
| AUG | Syd Mead | 33.33% | $1137.00 |
| Tec-9 | Fuel Injector | 33.33% | $1125.00 |
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 MP9 | Airlock’s range of 0.00–1.00. 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 | 0.0350 |
| Minimal Wear | 0.1100 | 0.1100 |
| Field-Tested | 0.2650 | 0.2650 |
| Well-Worn | 0.4150 | 0.4150 |
| Battle-Scarred | 0.7250 | 0.7250 |
“Not reachable” means MP9 | Airlock’s own float range never enters that exterior band — no combination of inputs can produce it.
What MP9 | Airlock 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 | $1139.00 | −$31.00 |
| Well-Worn | $1249.00 | +$79.00 |
| Field-Tested | $1260.00 | +$90.00 |
| Minimal Wear | $1312.00 | +$142.00 |
| Factory New | $2858.00 | +$1688.00 |
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.