Mil-Spec Trade-Up — $2.29 Profit (19.1% ROI)
Cost $11.97 · 40% chance to profit · Mil-Spec rarity tier. Built from inputs from The Shadow Collection, The Fracture Collection, The Recoil Collection. Data sourced from real listings on CSFloat, DMarket, and Skinport.
Inputs
This trade-up contract uses 10 input skins of the same rarity. The 10 inputs are:
- XM1014 | Scumbria (Minimal Wear) — The Shadow Collection — $0.46
- XM1014 | Scumbria (Minimal Wear) — The Shadow Collection — $0.47
- MAG-7 | Cobalt Core (Factory New) — The Shadow Collection — $1.20
- SCAR-20 | Green Marine (Factory New) — The Shadow Collection — $1.38
- SCAR-20 | Green Marine (Factory New) — The Shadow Collection — $1.41
- SCAR-20 | Green Marine (Factory New) — The Shadow Collection — $1.80
- SCAR-20 | Green Marine (Factory New) — The Shadow Collection — $2.27
- SCAR-20 | Green Marine (Factory New) — The Shadow Collection — $2.43
- SSG 08 | Mainframe 001 (Minimal Wear) — The Fracture Collection — $0.26
- Negev | Drop Me (Minimal Wear) — The Recoil Collection — $0.29
Outputs
The output skin is randomly selected from the next rarity tier in the matching collections, weighted proportionally by input count per collection. Possible outputs:
- Dual Berettas | Flora Carnivora (Minimal Wear) — 2% chance — est. $0.95
- M249 | Downtown (Factory New) — 2% chance — est. $1.71
- P90 | Vent Rush (Factory New) — 2% chance — est. $2.21
- R8 Revolver | Crazy 8 (Minimal Wear) — 2% chance — est. $0.87
- SG 553 | Dragon Tech (Factory New) — 2% chance — est. $1.75
- Galil AR | Stone Cold (Factory New) — 20% chance — est. $40.16
- M249 | Nebula Crusader (Minimal Wear) — 20% chance — est. $2.58
- MP7 | Special Delivery (Factory New) — 20% chance — est. $10.05
- P250 | Wingshot (Factory New) — 20% chance — est. $16.73
- Galil AR | Connexion (Factory New) — 2% chance — est. $4.23
- MAC-10 | Allure (Minimal Wear) — 2% chance — est. $1.35
- MAG-7 | Monster Call (Minimal Wear) — 2% chance — est. $0.90
- MP5-SD | Kitbash (Factory New) — 2% chance — est. $2.36
- Tec-9 | Brother (Minimal Wear) — 2% chance — est. $1.45
Mechanics
In CS2, a trade-up contract accepts exactly 10 weapon skins of the same rarity and produces 1 skin of the next higher rarity. The output skin's float value is determined by the adjusted float formula: the average float of all 10 inputs is mapped into the output skin's condition range, producing a predictable wear result.
The output condition depends on where the average input float falls relative to the output skin's min and max float values. Lower-float inputs (closer to 0) tend to produce Factory New or Minimal Wear outputs; higher-float inputs (above 0.45) push toward Field-Tested, Well-Worn, or Battle-Scarred.
Profitability depends on three factors: (1) the cost of 10 inputs at current marketplace prices, (2) the expected value of the output distribution weighted by each skin's market price, and (3) the marketplace fees applied on both the buy and sell sides. This trade-up was calculated using live listing prices with all fees included.