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. Features: SOG XR lock system Dagger style blade CTS XHP blade Steel Product #: 322992 Manufacturer #: SOG-12-61-01-57 UPC #: 729857010139