Hi Rob,
Some things to consider when selecting a knife for real military duty. First and formost, its use as a protector [in other words when it is used to kill another human] is very limited and if you do have to use it that means your rifle and pistol are gone and everyone else around you with those weapons are dead too. Kind of a last ditch thing. This role is important but consists of less than one tenth of one percent of its "real" job.
For most deployed in the field, whether real combat or training, this knife will be used to cut, dig, slice food, break open cans, bust metal straps that hold together pallets, dig some more, break open crates, bust into anything and everything that doesn't want to be opened, cut nylon webbing and rope and wire and do just about every other task besides stabbing a human.
So while some of the millitary daggers seem to be just the ticket they normally fall far short and usually end up broken or stored away some where. So then how do you choose? I would begin by looking at what others, especially those with experience carry. Here is where it gets less fun for some of the knife guys to talk about because you end up hearing all the old common boring names and virtually none of the customs. So what do "real" combat troops carry and what would any troop in the sand love to get as a gift?
- USMC Ka-Bar (also available in Navy, Army, plain black, Next Gen and D2)
- Becker BK2 / BK7
- Cold Steel SRK / Recon Scout
- SOG - Seal Team (Elite) / Seal Pup (Elite) / Ranger / SOG Ops
- Leatherman or Gerber multi tool (both are very well built and each has its "absolute" following. I carried a Leatherman for 8 years and still have it. It is very hard to state how important these multi-tools are when you are away from civilization and have limited gear.)
- Bark River? More recently you "may" add Bark River to the list but they were after my time and I can't speak to whether or not many actually carry them. But the Bravo 1 and the Gunny have been given lots of attention recently.
Also note that the USMC Ka-Bar can be considered like the name Bowie. Many companies make fine Ka-Bar "type" knives and many are very well made. Just don't get fooled by a half priced knock-off that claims to be the same quality as Ka-Bar. The same with the BK2/7, with the ESEE line being comparable. What you must remember is that the troops really use their knives and if something happens to it, sorry let me start again; when something does happen to it, it should be from a company that has the models in stock and can ship out replacements immediately. This is where companies like Ka-Bar/Becker, Cold Steel, Leatherman, Gerber & SOG shine. They sell tens of thousands of knives to military personnel and they always seem to find a way to get one in the mail right away for our troops.
So the company needs to be reliable, the knives need to have a good warranty and the company needs to have the resources to repair or replace quickly. Now I know I probably left out some great companies and I mean no disrespect, just trying to make a point about what is needed in the field. Plus if you lined up every US Military personnel and took an inventory of what they carry, the companies I listed would probably comprise 85% [or more] of what is being carried in combat.
Good luck!