New

Pets are in CS2 — see every chicken, all 41 colour variants, eggs, feed and growth stages, straight from the game files.

Meet the chickens
Souvenir M4A1-S | Mud-Spec (Factory New)
View in 3D Steam Market

Wear

FN $3.22MW $1.28FT $0.36WW $1.22BS $0.89

Details

Weapon
 M4A1-S
Float range
0.00 – 0.73
Category
Rifles
Paint index
1243
Legacy model
No
Pattern
Mud-Spec
Side
Counter-Terrorists
Trade-up contracts
Eligible

Colours

Black 54%
Orange 21%
Gray 17%
Other 8%

Market activity

Liquidity
54 / 100
Fair
Popularity
88 / 100
Strong
Demand 49
Cost to sell 90
Speed to sell 40
Market supply 94
Sales velocity 90

Steam order book

B tier liquidity
Highest buy order
$4.19
Lowest sell listing
$4.30
Spread
$0.112.56%
4.4k buy orders 73 sell listings

Where it comes from

Renders

Factory New
Souvenir M4A1-S | Mud-Spec (Factory New) — Dust II light, front

Game files

The textures CS2 builds this skin from, extracted from the game files.

Anodized — pattern + paletteA base pattern recoloured by the palette below — same design, different colours.

Palette
Industrial Grade The Anubis Collection

SouvenirM4A1-S Mud-Spec (Factory New)

Factory New

Lowest price

$3.22

on CSFloat, the cheapest of 17 markets $0.64 less than Steam

Buy on CSFloat
Median
$4.04
24 hours
−2.3%
7 days
+2.4%
30 days
−24.9%

1,029 listings across all markets

Marketsfor Souvenir M4A1-S | Mud-Spec (Factory New)

17 with a price
  • CSFloat Lowest
    $3.22 Buy
  • BUFF163
    $3.75 Buy
  • SkinOut
    $3.80 Buy
  • Steam Market
    $3.86 Buy
  • Market.CSGO
    $3.87 Buy
  • HaloSkins
    $3.90 Buy
  • Skins.com
    $3.94 Buy
  • SkinSell
    $3.95 Buy
25 markets without a price

Price historyof M4A1-S | Mud-Spec

$4.04

−20.9% over 30D·median across markets

Oct 1, 2026 Oct 31, 2026

Price by float

The lowest price you can buy at, across markets, for each float. Jumps at the wear boundaries are real.

$3.95

cheapest at float 0.0575 · typical $4.48–$6.56 · 9 listings on 3 markets nearby

0.000.020.050.07
Cheapest Middle half of listings Median
Lowest cross-market price by float range
Float rangeLowest price
FN <0.02$4.05
0.02 – 0.03$5.12
0.04 – 0.05$7.84
0.05 – 0.06$4.24
0.06 – 0.07$3.92

In short

Origin

The M4A1-S | Mud-Spec can be obtained by opening Anubis Collection Package, Paris 2023 Anubis Souvenir Package, Copenhagen 2024 Anubis Souvenir Package, Shanghai 2024 Anubis Souvenir Package, Austin 2025 Anubis Souvenir Package, or Austin 2025 Anubis Souvenir Highlight Package. It is also part of the The Anubis Collection collection.

Rarity

The M4A1-S | Mud-Spec has a Industrial Grade rarity and is categorised as Rifles, with an estimated case drop chance of 4.00%.

Availability

The cheapest Souvenir M4A1-S | Mud-Spec (Factory New) is $3.22 on CSFloat, with prices across 17 markets ranging up to $7.90.

Price trend

Over the last 30 days the cross-market median price of the Souvenir M4A1-S | Mud-Spec (Factory New) went from $5.11 to $4.04 (−20.9%), with a low of $3.76 on Oct 28 and a high of $5.15 on Oct 9. That is +4.4% over the last 7 days. On the Steam Community Market the highest buy order is $4.19 and the lowest listing is $4.30 (4,365 buy orders, 73 listings).

Versions

The float value ranges from 0.00 to 0.73, available in all five wear conditions. It also has a Souvenir version.

Finish Style

This M4A1-S features the Mud-Spec design.

Planning a contract with M4A1-S | Mud-Spec? Simulate output floats, odds and profit in the CS2 trade-up calculator.

Guides

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M4A1-S | Mud-Spec — Frequently Asked Questions

How much does the Souvenir M4A1-S | Mud-Spec (Factory New) cost?
As of Oct 2026, the cheapest Souvenir M4A1-S | Mud-Spec (Factory New) costs $3.22 on CSFloat. CSSkinLab compares live prices across 17 CS2 marketplaces so you always see the cheapest offer first.
What is the float range of the Souvenir M4A1-S | Mud-Spec (Factory New)?
The Souvenir M4A1-S | Mud-Spec (Factory New) has a float range of 0.00 – 0.73. Lower floats mean less visible wear on the skin. The M4A1-S | Mud-Spec exists in 5 wear tiers: Factory New, Minimal Wear, Field-Tested, Well-Worn and Battle-Scarred.
Does the M4A1-S | Mud-Spec come in StatTrak™ or Souvenir?
The M4A1-S | Mud-Spec also drops as a Souvenir version from tournament packages, but it does not exist in StatTrak™.
Can I use the Souvenir M4A1-S | Mud-Spec (Factory New) in a trade-up?
Yes. The Souvenir M4A1-S | Mud-Spec (Factory New) can be used as an input in a trade-up contract: combine ten Industrial Grade skins to receive one skin of the next rarity tier. Use the CSSkinLab trade-up calculator to find the best inputs and simulate float outcomes and ROI, or work backwards from a target skin with the reverse calculator.
Where does the M4A1-S | Mud-Spec drop from?
The M4A1-S | Mud-Spec drops from the Anubis Collection Package, Paris 2023 Anubis Souvenir Package, Copenhagen 2024 Anubis Souvenir Package, Shanghai 2024 Anubis Souvenir Package, Austin 2025 Anubis Souvenir Package and Austin 2025 Anubis Souvenir Highlight Package with an estimated drop chance of 4.00% per opening. It belongs to the The Anubis Collection. You can also buy it directly from community marketplaces, usually for less than the cost of opening cases.
What rarity is the M4A1-S | Mud-Spec?
The M4A1-S | Mud-Spec is a Industrial Grade rarity skin. Rarity determines how often it drops and which trade-up contracts it fits into.