Black Bear Knives is a new manufacturer whose claim to fame is the new A.C.E style of sharpening their knives.  The A.C.E. stands for "Asymetrical Cutting Edge" and creates a razor sharp instrument for a multitude of tasks.  The knives feature G-10 or Carbon Fiber handles and NO liners of any kind.  The locking mechanism is a spring bar.  The locking spring bar is secured into an indentation made in one side of the handle.  The knives are extremely lightweight but powerful.  Many configurations are available.