MP9 | Goo is a Restricted SMG skin from The Spectrum 2 Collection, which entered the CS2 economy alongside the Spectrum 2 Case in September 2017.

The float range for this finish is restricted to 0.00–0.60, so Factory New, Minimal Wear, Field-Tested, Well-Worn, and Battle-Scarred are the only obtainable conditions on the open market. The restricted range is set by Valve at the time of release.

A StatTrak™ version is available, which tracks confirmed kills made while the skin is equipped and typically commands a premium over the standard finish. Active listings for MP9 | Goo are tracked across 20 marketplaces, with prices spanning $0.87 to $7.47 depending on wear, variant, and seller.