This is a rare Knight's Armament tactical folder designed by Steve Ryan and made in Seki, Japan circa 2000. This one is an unmarked (sterile) prototype and is the same knife as the other BK-03 we have that is marked. It was ahead of its time. Master Seki tactical knifemaker Kiku Matsuda did the blade work on this aggressively designed black chisel grind ATS-34 blade with partial serrations. It is super sharp! The handle features heavy duty black titanium liners with black anodized bolsters and micarta scales. A very large knife, it measures 6 1/8" long closed with a 4 1/2" long blade. Does not have a pocket clip. Comes with nylon MOLLE sheath.