The ★ Flip Knife | Gamma Doppler is a Covert knife skin in Counter-Strike 2, available since June 2016 from the Gamma Case. This is the Emerald phase of the finish, distinguished by its specific colourway.

The float range for this finish is restricted to 0.00–0.08, so Factory New and Minimal Wear are the only obtainable conditions on the open market. Battle-Scarred examples are not produced, so the most worn copies still retain a relatively clean appearance.

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 ★ Flip Knife | Gamma Doppler are tracked across 9 marketplaces, with prices spanning $1,342 to $2,162 depending on wear, variant, and seller.