M4A1-S | Mud-Spec
Featuring a custom black and brown camouflage finish, M4A1-S | Mud-Spec holds Industrial Grade rarity within The Anubis Collection. Souvenir versions have been distributed through the Anubis Collection Package and multiple major tournament packages including Paris 2023, Copenhagen 2024, Shanghai 2024, and Austin 2025. Float values reach up to 0.73, meaning Field-Tested and Well-Worn copies are obtainable and show progressive weathering of the earthy camouflage tones. No StatTrak variant exists for this skin.
Cheapest wear we have on this page. Pattern / float overpay is extra.
Anubis Collection Package: (case+key) ÷ drop chance. Average, not a promise.
Ten of this rarity → Mil-Spec in The Anubis Collection. Avg listed output $1.58.
Price History & Performance
Price by Wear
Souvenir M4A1-S | Mud-Spec exists as a separate listing (event stickers, not removable). This table is the regular skin unless a Souvenir price field is present. What Souvenir means.
Cases & Drop Odds for M4A1-S | Mud-Spec
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 |
|---|---|---|---|---|---|
 Anubis Collection Package | — | — | $5.53 | — | no data |
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 M4A1-S | Mud-Spec
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