This is a Columbia River Knife & Tool Folding Knife known as the Provoke, model 4040.
Serve. Protect. The Provoke(TM) morphing karambit knife draws on ancient design but it's hiding a futuristic secret. The first knife ever to feature Kinematic(TM) technology" it stays neatly tucked away in transit and comes to life when there's trouble afoot.
Features:
7.25 overall length;6061 T6 aluminum handle;2.41 blade length
