USP-S | Serum is a Classified-tier finish from The Arms Deal 2 Collection, available from CS:GO Weapon Case 2. Live prices across Buff, Skinport, CSFloat, DMarket and other markets, plus 30-day price history and per-wear listings.

USP-S | Serum

Serum

USP-S Factory New

A fan favorite from Counter-Strike Source, the Silenced USP Pistol has a detachable silencer that gives shots less recoil while suppressing attention-getting noise. It has been painted in a digital pattern with metallic paints of various reflectivities over a chrome base coat.

★ CLASSIFIED

Variants

USP-S | Serum (Factory New) $137.99
USP-S | Serum (Minimal Wear) $57.05
USP-S | Serum (Field-Tested) $54.04
USP-S | Serum (Well-Worn)
USP-S | Serum (Battle-Scarred)
StatTrak™ USP-S | Serum (Factory New) ST $72.87
StatTrak™ USP-S | Serum (Minimal Wear) ST $55.95
StatTrak™ USP-S | Serum (Field-Tested) ST $49.41
StatTrak™ USP-S | Serum (Well-Worn) ST
StatTrak™ USP-S | Serum (Battle-Scarred) ST
Souvenir USP-S | Serum (Factory New) SOUV
Souvenir USP-S | Serum (Minimal Wear) SOUV
Souvenir USP-S | Serum (Field-Tested) SOUV
Souvenir USP-S | Serum (Well-Worn) SOUV
Souvenir USP-S | Serum (Battle-Scarred) SOUV

Markets i

Currency:
Live prices — automatically aggregated and refreshed throughout the day across every market.
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Containers 1

CS:GO Weapon Case 2
CS:GO Weapon Case 2
The Arms Deal 2 Collection

Inspect Skin

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0.000 FN

Item Details

Weapon
USP-S
Skin
Serum
Rarity
Classified
Collection
The Arms Deal 2 Collection
Crate
CS:GO Weapon Case 2
Float range
0.00 – 0.25
StatTrak™
Available
Souvenir
Available

Colors

Liquidity

80%
High

370 listings across 7 markets.

Community Rating

/5
0 votes · click to rate

Price History i

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Price Statistics

Current Best Price
$137.99
24H Change
7D Change
30D Change
90D Change
All-Time High
$270.02
Jun 12, 2026
All-Time Low
$138.70
May 29, 2026
24H Low24H High
$168.80 $209.67
7D Low7D High
$162.12 $270.02
30D Low30D High
$138.70 $270.02
1Y Low1Y High
$138.70 $270.02

Drop Chance

Arms Deal 2 Collection
Collection
ARMS D
Classified
Rarity tier
Odds
1 in 769
Serum
USP-S
Tier share
1 in 1
Factory New
Exterior
Odds
1 in 8.1
Final result
Total odds per container
1 in 6,203
0.0161%

Description

A fan favorite from Counter-Strike Source, the Silenced USP Pistol has a detachable silencer that gives shots less recoil while suppressing attention-getting noise. It has been painted in a digital pattern with metallic paints of various reflectivities over a chrome base coat.

History

Released in November 2013 in CS:GO Weapon Case 2 — a Day 1 Arms Deal Classified skin from the second-ever CS:GO weapon case.

Origin

Digital pattern in metallic paints of various reflectivities over a chrome base coat — the dual-reflectivity technique creates a shifting optical quality depending on viewing angle.

Popularity

Classified from CS:GO Weapon Case 2 with a severely limited float range; Serum is a premium historical skin with strong collector demand driven by its combination of early-era prestige and float scarcity.

Rarity

Classified — approximately 1-in-156 from CS:GO Weapon Case 2. StatTrak versions are available.

Availability

Sourced from CS:GO Weapon Case 2, available on the secondary market. Max float 0.25 means only Factory New (0–0.07), Minimal Wear (0.07–0.15), and limited Field-Tested (0.15–0.25) exist — no WW or BS.

Versions

Float range 0–0.25. FN, MW, and limited low FT only — no WW or BS. StatTrak available.

Finish Style

Custom paint — digital pattern in metallic paints of varying reflectivities over chrome base.

Community Sentiment

A foundational Classified from CS:GO's earliest content; the reflectivity technique gives Serum a premium visual quality and the heavily restricted float range focuses collector attention on FN and clean MW copies.

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