I think the Fox Karambits are made under license, since Emerson patented the "Wave". Kinda like buying a Ford instead of a Lincoln

Didn't even know 5.11 made a karambit. I carried a 2-1/2" blade of theirs that was discontinued for about 4 years. It worked beautifully, althought with the abuse I put it through, screws and rivets started coming out, haha. held up very well until I replaced it though.