I wanted to use 12g co2 cartridges instead of the 16g because they're much more available, cheaper, and still dispense 1 gallon of your beverage of choice.
Fits 12g unthreaded cartridges snugly for the Perfect Pour adapter.
Print pointy end up.
No brim or raft. Of course you could use either if you're one of those 'play it safe' kind of people.