That's a big, big can being designed by Hephaestus Airsoft for their HTs-14 Gas Blowback Bullpup that was developed together with GHK Airsoft. The dummy suppressor is still a prototype and we don't know how front heavy the HTs-14 will be with it. A tracer unit was inserted inside the can to test it too. We don't know if the tracer unit is a third-party product or developed by Hephaestus, though we know if will have to purchased separately when released.