The MK2.1 by Extrema Ratio is an elite combat fighting knife made from thick Bohler N690 stainless steel and black nylon handle, the MK2.1 is a fighting knife that is sure to impress and perform in the field. Made from a quarter inch of Bohler N690 stainless steel, the Mk2.1 is extremely tough. An aggressive swedge and dual fullers reduce weight and improve balance. The grooved and contoured black nylon handles provides excellent grip. Carry the MK2 into the field with the black MOLLE compatible sheath. Features: Corrosion resistant Bohler N690 stainless steel for a keen edge and easy maintenance. Black finished blade and hardware for a covert ready tool. Ballistic nylon black belt sheath for easy carry.