Many modern cutlery companies have based their new models on the basic kabar theme. You can have serrated edges, sawbacks, synthetic handles, nylon sheaths, or even tanto points. I have tried one of the sawback models, but I can't recommend it for much besides fish scaling. Sticking to the original pattern, you basically have two choices, the Ontario Knife Company Model 498 and the KA-BAR USMC. To complicate this a little, the Ontario is the actual current Mil-Spec USMC issue version, while the KA-BAR model is more of a well-finished replica. Ontario's knife is a bit less expensive, but KA-BAR's is generally considered prettier. Until recently the KA-BAR version carried the WW-II "USMC" tang stamp, something that kind of rubbed those from other branches of the service the wrong way. This year KA-BAR started offering the knife with a plain, one-sided tang stamp and no marking on the sheath. One other difference between the two knives is the fact KA-BAR does not sharpen the false edge. I believe this is to comply with various double-edge knife restrictions.