The Pentagon Mk3 was based of of the great popularity among the military and law enforcement community for the original Pentagon Series. These knives are impeccably balanced and feature G-10 handles, ambidextrous slotted thumb studs, machine screw construction, a black blade and clip. The Pentagon Mk3 features SOG's XR lock system and a reversible military-style clip. FeaturesSOG XR lock systemDagger style bladeCTS XHP blade Steel