Nightjar | Vortex Micarta + Satin AUS-10Vincent Rizzo is a US air force veteran who gave the knife community the Rook and the Sparrow, and the Nightjar is his most compact and purposeful production design yet. A stout 2. 94" AUS 10 sheepsfoot arrives flat ground and in a satin finish, with generous jimping along the spine that gives you confident purchase whether you are bearing down on tough material or working through fine detail cuts. The index finger hole is the standout feature,