Compare Prices
Note: Steam Market shows the lowest current listing only. For knives with phase variants (Doppler, Gamma Doppler, Marble Fade) and items above Steam's listing cap, that lowest listing is often a chase-phase Emerald or stickered copy priced 5–10x above the typical-phase market. We display Skinport and Waxpeer instead — they reflect what the standard variants actually trade for.
About M4A1-S | Mud-Spec
The M4A1-S | Mud-Spec in Factory New is the consumer-tier M4A1-S with the earthy camo finish at FN — entry-tier M4A1-S cover with warm-tone palette at peak clarity.
Why FN matters on Mud-Spec
FN preserves the design at peak clarity. The M4A1-S receiver gives the design generous visible canvas.
