US Navy MK 3 Mod 0 Dive Knife

Got this US Navy MK 3 Mod 0 dive knife. It's the standard issue one with the black molded handle and the plastic sheath. The sheath is marked MK 3 MOD 0 USN as it should be. It's a pretty solid, heavy duty piece of gear if you're into military surplus or just need a rugged fixed blade. Has some wear from use but still looks decent.