UMP-45 | Plastique
Obtainable from the CS20 Case within The CS20 Collection, the UMP-45 | Plastique is a Restricted rarity skin with StatTrak availability. Painted across the weapon are wires, a green circuit board, and a number pad, assembling a visual reference to an improvised explosive device that fits the CS20 anniversary theme. Float values span 0 to 0.8, allowing for nearly pristine to Well-Worn specimens. The fine circuitry detail and numerical pad graphics remain fairly legible in lower-float copies, while higher-wear examples see those technical elements increasingly obscured by surface degradation.
Cheapest wear we have on this page. Pattern / float overpay is extra.
CS20 Case: (case+key) ÷ drop chance. Average, not a promise.
Ten of this rarity → Classified in The CS20 Collection. Avg listed output $4.63.
Price History & Performance
Price by Wear
Cases & Drop Odds for UMP-45 | Plastique
Probability of unboxing this skin per single case open, expected number of opens until you get one, and the case's expected return based on the current market value of every skin inside.
| Case | Drop Chance | Expected Opens | Open Cost | Market EV | EV vs Cost |
|---|---|---|---|---|---|
 CS20 Case | — | — | $4.46 | $0.65 | -85.4% |
Drop chance = official rarity odds ÷ size of that rarity pool inside the case. Market EV is the probability-weighted average of every skin's lowest current listing. "EV vs Cost" compares that EV against the case + key price — negative means opening loses money on average.
Where to Buy UMP-45 | Plastique
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