This knife is used exclusively by U.S. Marine Forces.
Ontario Knife Company has produced the following knives for many decades and all have seen combat with U.S. armed forces. Needless to say, these veteran blades are not in the business of giving quarter.
Have Camillus,Case, and Ka-Bar versions of this knife. BTW the Camillus is NY version. All though not as pretty as a Ka-Bar it is the best of the four IMO. Other then the Ka-Bar all are phosphate coated. The Case with the best coat and the Camillus with the worse.Feels great and got it hair shaving sharp. It and the Camillus where the least expensive when I purchased and seem just as good as the more expensive offerings.