I know I am late to the discussion and its sounds like the discussion has already been made, but couldn't pass up the opportunity to "vocalize" my dream Scrap Yard knife.

A bayonet. One that would fit onto a standard M-16 service rifle/M-4 carbine. It would need to be thick and designed for thrusting but not sacrifice its ability to be utilized as a utility or fighting knife.

The one I have now holds an edge like a bowling ball floats. I would love to have an affordable, well built replacement, especially in the form of a Bussekin knife.