The BK-1b is a militarized version of the Mantis “Wicked” Push Dagger. On this model, there is less flash and more thrash for you hard earned dollar.
There is a textured Black G-10 overlay secured with bead-blasted torx cap screws. The sheath was slightly tweaked to allow for easier removal of the knife, but without sacrificing the security of the knife when it’s seated. No noise, no shake. Just silence and sharpness with this model.