Co2 target ridged

This model is made to hold up empty 12 gram Co2 cartridges to shoot at. I did get the center from another designer on Thingiverse

His files can be found here https://www.thingiverse.com/thing:3828363

I can't keep you from putting a sealed unused Co2 cartridge but I highly discourage it, but if you do please place it at a safe distance at least 100 yards away or 300 feet.