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M4A4 | Buzz Kill
Reverse trade-up finder

Trade up to M4A4 | Buzz Kill

10 Classified skins from the Glove Case collection can become M4A4 | Buzz Kill. Pick a wear to see every realistic route, its odds, cost and the input float it needs.

CovertFloat range 0.00–0.70Glove CaseSkin details
Prices as of Oct 27, 2026Steam Community Market averages · snapshot 2026-10-27 10:25 UTC

Factory New M4A4 | Buzz Kill needs an average normalized input float below 0.1000 (output float 0.000–0.070). Best chance per contract: 50.0%.

M4A4 | Buzz Kill
Highest chance
FN50.0% chance· $819.32
Classified → Covert
Cost
$756.70
EV
89%
$674.30
Profit
−$170.36
after fee
Win %
0%
to profit
Avg float ≤ 0.093 (needs < 0.100)2 outcomesActive market
M4A4 | Buzz Kill
Best profit odds
FN25.0% chance· $819.32
Classified → Covert
Cost
$441.50
EV
84%
$372.04
Profit
−$117.99
after fee
Win %
50%
to profit
Avg float ≤ 0.099 (needs < 0.100)4 outcomesActive market
M4A4 | Buzz Kill
FN15.0% chance· $819.32
Classified → Covert
Cost
$346.08
EV
77%
$264.91
Profit
−$115.72
after fee
Win %
30%
to profit
Avg float ≤ 0.098 (needs < 0.100)4 outcomesActive market
M4A4 | Buzz Kill
FN15.0% chance· $819.32
Classified → Covert
Cost
$354.34
EV
77%
$272.74
Profit
−$117.18
after fee
Win %
30%
to profit
Avg float ≤ 0.098 (needs < 0.100)4 outcomesActive market
M4A4 | Buzz Kill
Best EV
FN10.0% chance· $819.32
Classified → Covert
Cost
$279.98
EV
76%
$213.83
Profit
−$94.04
after fee
Win %
20%
to profit
Avg float ≤ 0.099 (needs < 0.100)4 outcomesActive market
M4A4 | Buzz Kill
Cheapest
FN5.0% chance· $819.32
Classified → Covert
Cost
$215.61
EV
60%
$130.23
Profit
−$102.37
after fee
Win %
10%
to profit
Avg float ≤ 0.100 (needs < 0.100)4 outcomesActive market

Required input float for each M4A4 | Buzz Kill wear

WearOutput floatAvg normalized input floatCheapest routeBest chance
Factory New0.000–0.070< 0.1000$215.6150.0%
Minimal Wear0.070–0.150≥ 0.1000 and < 0.2143$115.4550.0%
Field-Tested0.150–0.380≥ 0.2143 and < 0.5429$70.1950.0%
Well-Worn0.380–0.450≥ 0.5429 and < 0.6429$82.1650.0%
Battle-Scarred0.450–0.700≥ 0.6429 and any$68.7550.0%

The average is over every input's float normalized to its own range. Output float = 0.00 + average × 0.70.

Other trade-up targets in this collection

How CS2 trade-up contracts work

Inputs & odds

10 skins of one rarity become 1 skin of the next rarity (Mil-Spec → Restricted → Classified → Covert). Since the October 2025 update, 5 Covert skins can become a knife or gloves from those skins' case. Each input collection gets its share of the odds (inputs from it ÷ total), split evenly across that collection's next-tier skins.

Float math

Every input float is normalized to its own skin's range — (float − min) ÷ (max − min) — and averaged. Each output's float is its min + average × (max − min), so a restricted-range skin like 0.10–0.20 can only land in the wears its range allows.

Prices, fees & freshness

Values are Steam Community Market averages from the snapshot dated on each page. Profit subtracts the ~13% Steam seller fee. StatTrak™ inputs give StatTrak™ outputs (knives only — gloves have no StatTrak™). Map collections outside weapon cases aren't in DropLabz's dataset yet.

Pick the skin you want in the reverse trade-up finder, check any contract in the trade-up calculator, or compare with opening cases on case ROI and knife odds.