Fox Black Bird Bastinelli FX-591 Black karambit

The Fox Black Bird Bastinelli FX-591 is a cool karambit knife, designed by Bastinelli Designs. He designed the knife as such that you can immediately get to work when you pull it from your pocket. The spine is namely enhanced with a wave opener. It will get caught behind the edge of your pocket, opening the blade. There is no faster way of opening a knife.