The SCUBA/DEMO is the rarest of the Special Forces SOG knives. In fact, only one original is known to exist today. Originally 39 were made and 38 were delivered to the Naval Advisory Detachment for missions along the North Vietnamese coastline. Of the 38 issued, 36 were lost in operations and the other two were never seen again. Using current manufacturing techniques we are now able to create a spectacular reproduction of this ultra rare knife but modernized as well.