M4A1-S | Mud-Spec (Well-Worn)

Skin overview

Mud-Spec is a utilitarian black and brown camo, and in Well-Worn it looks like a rifle that has seen long use. Scratches spread from the edges onto larger surfaces, and the brown patches lose some of their definition. The look stays coherent because the finish was dark and muddy from the start.

Item type: rifle. The weapon is available only on the Counter-Terrorist side. Industrial Grade is the second tier from the bottom: common skins from drops and collections.

Gunsmith: several techniques combined on one item; some parts rub off, others only dull.

The remaining qualities of this skin: Factory New, Minimal Wear, Field-Tested and Battle-Scarred.

Appearance in Well-Worn

The silencer is dark with large brown and tan camo patches running along its length, while the perforated muzzle end stays nearly black. The ribbed handguard has a bronze-brown tone with darker blotches, and the receiver and carry handle are mostly black with small brown accents.

Wear spreads from the edges onto the silencer body, the handguard and the magazine, and the brown patches blur in places. Bare metal shows more often on raised parts and the carry handle. The stock and the lower receiver keep more paint, and in game the weapon reads as clearly battered.

Well-Worn wear: float 0.38–0.45

The whole float range of M4A1-S | Mud-Spec is 0–0.73; Well-Worn takes the 0.38–0.45 segment (10% of the scale). The lower the float within the range, the cleaner the surface looks and the higher a copy is usually priced.

Origin of the skin

The skin’s collection is The Anubis Collection with 19 skins in total.

It drops from:

• Anubis Collection Package (on sale since Apr 24, 2023)
• Austin 2025 Anubis Souvenir Highlight Package
• Austin 2025 Anubis Souvenir Package
• Copenhagen 2024 Anubis Souvenir Package
• Paris 2023 Anubis Souvenir Package
• Shanghai 2024 Anubis Souvenir Package

What it costs in each quality

By price this skin is 2nd of 4 skins Industrial Grade M4A1-S in this quality (the first being the dearest).

Souvenir version

There is also a the Souvenir version with tournament stickers.

Which stickers suit it

Brown, tan, olive and black stickers blend with the muddy camo for a cohesive field look. Gold or bronze accents pick up the tone of the handguard, and placement on the receiver keeps them visible against the dark base.

What to check before buying

• Check where the float sits within the wear grade, since copies at the clean end of a grade look noticeably better.
• Inspect the silencer edges, handguard ribs and carry handle, as these show wear first.
• Souvenir copies come with stickers already applied, so make sure you like them before buying.
• Look at any stickers or name tag on regular copies, as they change how the dark finish reads.

Who should buy Well-Worn

• Players who want a battered look on a budget.
• Those who prefer character over a clean finish.
• Conclusion: an inexpensive option with a convincingly worn style.