About ★ Butterfly Knife | Case Hardened
The ★ Butterfly Knife | Case Hardened in Factory New is the procedurally generated blue-and-gold metallurgical-character finish on the iconic Butterfly Knife silhouette at FN — pattern-index lottery determines blue-coverage with high-blue copies commanding multi-multiplier premiums.
Blue-tier hierarchy on Butterfly CH
Trader communities track Case Hardened by blue coverage. The Butterfly's distinctive bisected blade frames the colour pattern in a recognisable way. FN preserves the colour saturation at peak intensity.
