The G3SG1 | Flux is a Classified-tier rifle finish in Counter-Strike 2, originally introduced as part of The Shadow Collection when the Shadow Case launched in September 2015.

The float range for this finish is restricted to 0.00–0.90, 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 G3SG1 | Flux are tracked across 18 marketplaces, with prices spanning $5.63 to $102.67 depending on wear, variant, and seller.