I'm gonna assume you are not really informed about current (US) special forces equipment usage (i.e. the ones who regularly perform h2h combat). This particular item has been issued since something like 2004 to various units. In fact a few years ago there was a scandal in the Seal teams where a CO liked to ask his soldiers if they "had got blood on their hawks". I'm sure you can find some references, if you can be bothered.