USP-S Serum (StatTrak Factory New)

Serum | USP-S is a weapon skin for the USP-S, with Classified rarity and a collection association to The Arms Deal 2 Collection. It was released on November 8, 2013 under The Arms Deal 2 update, and has an exact float range of 0.00–0.25, with Factory New, Minimal Wear, and Field-Tested available as wear conditions.

Normal, StatTrak, and Souvenir versions are available for the item, with each version represented by its corresponding availability field. These version labels are the supplied designations for the weapon skin, with normal, StatTrak, and Souvenir each identified as available.