Official US Military M9 Bayonet. The US government contractor is Tri-Technologies, Inc. NSN:1095-01-227-1739. Glass Filled Nylon Sheath Material, Bianchi Clip Sheath Type. Includes M9 scabbard with quick release holster made of thermoplastic nylon that includes wire cutter and screwdriver. Stainless steel blade with sawteeth on back. 53-57 HRC Hardness, Plain Edge Type, Fixed Type Lock. Made in USA.