The ★ Butterfly Knife | Rust Coat is a Covert knife skin in Counter-Strike 2, available since March 2017 from the Spectrum Case.

The float range for this finish is restricted to 0.40–1.00, so Well-Worn and Battle-Scarred are the only obtainable conditions on the open market. Factory New examples are not produced for this skin — even the cleanest copies will show some surface texture.

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 ★ Butterfly Knife | Rust Coat are tracked across 18 marketplaces, with prices spanning $515.00 to $1,150 depending on wear, variant, and seller.