This 'Barb' injector was prominently used in season 5. It was the device created by Zeph which gave a person their memories back when injected to the back of the neck. The item is a heavy solid metal with a spring loaded trigger at the end. While the front has a strong magnet which holds the 'Barbs' . This came with multiple spare barbs, it also came with a printed production design of the injector which can be seen in one of the photos.
It is stored in the Killjoys prop dept bag which describes it as the hero version.
