The MP9 | Bioleak is a Mil-Spec-tier SMG finish in Counter-Strike 2, originally introduced as part of The Chroma 3 Collection when the Chroma 3 Case launched in April 2016.

The float range for this finish is restricted to 0.00–0.50, 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 | Bioleak are tracked across 18 marketplaces, with prices spanning $0.24 to $7.63 depending on wear, variant, and seller.