officers a Gerber Mark I with his/her initials engraved. When I left I got mine, it came with the black nylon sheath. I have an older Mark I with a leather sheath my family gave me. Both have black grips and SS blades. The Mark I is an ideal boot knife that can be carried in other ways as well. Its little brother was the Guardian. I've got one, camo nylon sheath and camo grip, black blade, I carry in the small of my back, diagonally, clipped inside my pants. It used to be very popular with certain USAF SPs and others carried like that. Very handy. It's OK combat boots as well.