The Gerber Mark II Is One Of The Most Famous Combat Knives Ever Issued To The American Military. The Mark II also has a double-edged spear point blade but with one massive exception: the wasp waist. Very few modern combat knives have the wasp waist (other famous American models like the M7, USMC fighting utility knife, and M9 don’t have it), and it is the visual signature of the Mark II.