The Mark 3 Navy Fixed Blade Knife from Ontario Knife Company is used exclusively by U.S. Naval Forces. It is a tough tactical knife ideal for everything from battle to use as a survival or camping knife. The black oxide finished 420 stainless steel blade features a serrated spine that is great for cutting through ropes or evening sawing through tree branches. Included with the Mark 3 Navy is a molded sheath. FeaturesMeets US Military Specifications