★ Flip Knife | Stained
Forced patina is the technique applied to this Flip Knife, achieved by dripping lemon and mustard directly onto the blade's surface to chemically discolor the metal in an uneven, organic fashion. The Flip Knife itself features a Persian-style back-swept blade with an acute point and a construction noted for durability despite the tip's relative fragility. This Covert knife is available across a wide range of cases including the CS:GO Weapon Case, Operation Bravo Case, and Revolver Case, among others. The float range of 0.00 to 1.00 allows every condition grade. StatTrak versions are available.
Cheapest wear we have on this page. Pattern / float overpay is extra.
eSports 2013 Winter Case: (case+key) ÷ drop chance. Average, not a promise.
Covert / missing collection peers: no contract estimate.
Price History & Performance
Price by Wear
Cases & Drop Odds for ★ Flip Knife | Stained
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 |
|---|---|---|---|---|---|
 eSports 2013 Winter Case | — | — | $39.11 | $0.65 | -98.3% |
 CS:GO Weapon Case | — | — | $205.65 | $0.65 | -99.7% |
 eSports 2014 Summer Case | — | — | $27.83 | $0.65 | -97.7% |
 Winter Offensive Weapon Case | — | — | $19.30 | $0.65 | -96.6% |
 Operation Bravo Case | — | — | $96.72 | $0.65 | -99.3% |
 CS:GO Weapon Case 3 | — | — | $22.62 | $0.65 | -97.1% |
 eSports 2013 Case | — | — | $83.00 | $0.65 | -99.2% |
 Operation Vanguard Weapon Case | — | — | $11.77 | $0.65 | -94.5% |
 CS:GO Weapon Case 2 | — | — | $38.11 | $0.65 | -98.3% |
 Operation Phoenix Weapon Case | — | — | $8.86 | $0.65 | -92.7% |
 Revolver Case | — | — | $6.96 | $0.65 | -90.7% |
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 ★ Flip Knife | Stained
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