I was recently in a local millitary surplus store that sells new knives. I was looking at a kabar marine corps. fighting knife and noticed that the top edge was fully sharpend. Is this how all kabars come from the factory? I didn't buy the one they had because the tip had a minor imperfection. I like the sharpened top edge and was thinking about doing this to some of my other fixed blades but I want to wait till I pick up an edge master.