A kukri-profile chopping knife built from a aerogel-reinforced carbon composite that maintains the traditional Nepalese blade's distinctive recurved geometry while reducing weight by 40% compared to steel. The Gurkha's inward-curving blade concentrates chopping force at the belly of the curve, generating impact energy disproportionate to the weapon's modest weight. Crucible's materials science division spent three years optimizing the composite layup to ensure the blade could sustain full-force chopping impacts without delamination.

The CK-7 retains the traditional kukri's two smaller companion blades — the karda and chakmak — housed in the scabbard alongside the main blade. In the Crucible version, the karda is a precision utility knife for fine cutting work, and the chakmak has been redesigned as a piezoelectric fire-starting tool that generates sparks from its composite striking surface. The three-blade system maintains the kukri tradition of providing a complete survival toolkit in a single carry package.

Crucible developed the Gurkha in consultation with martial artists from the Nepalese diaspora community in GLMZ, who provided historical design constraints that the engineering team integrated into the composite construction. The result is a weapon that practitioners of traditional Nepalese blade arts can use with their existing techniques while benefiting from modern materials. The collaboration has been cited as a model for cultural-technical partnerships in GLMZ's increasingly mixed martial community.