The S333 Thunderstruck Gen III sets the standard for the ultimate in personal protection by simultaneously firing two rounds of .22 Win Mag with each pull of the trigger. With four pulls of the trigger, eight rounds are fired in only three seconds. By combining standard ammunition and birdshot, each pull of the trigger will deliver an incredible combination of firepower and very light recoil. The small size allows it to be carried in your pocket or purse and can be easily retrieved when needed. The S333 Thunderstruck features an articulated safety integral into the trigger and requires a deliberate and full pull of the trigger before the transfer bar will clear from the firing pins and hammers; polymer grip and intuitive controls. *Note- All S333s are shot tested and regulated with the following ammo: CCI Maxi Mag 40 Grain, Maxi Mag 40 Grain HP and PMC Predator 40 Grain loads. We find there are large quality control issues with some ammo that cause issues with this gun.