Really, Australia?

The National Basketball League team was this week forced to surrender its homemade t-shirt cannon to police, after it was deemed a category B weapon.
...
The determination puts the homemade pipe launcher in the same category as a single shot centre-fire rifle, a double barrel centre-fire rifle, a repeating centre-fire rifle, a break action shotgun and centre-fire rifle combination.
Yeah. It's just like those.

Remember, this is the model Obama and Clinton would just looooove to bring here.