A folding lockback and a pocket tool make a good combo, even if you're issued a bayonet. They're more convenience tools than weapons, and fill a hole in what a GI needs. Heck, civilians need that stuff, too.
One good thing about a private-purchase knife is that you can have you name engraved on it, so it won't "walk away", if you should be so careless as to leave it unattended for a second. That's why the Hobbit Hole here went with the CRKT Samson 5700, which we are getting at a fantastic price. It's not a combat knife, but rather a utility knife usually worn on the body armor. It's durable, well made, and incredibly sharp, especially after I get done hand-stropping each one. We've now passed the 100 mark in knives shipped out.
