They use blunt studs here? Geez, glad you told me, I'll never get a gun piercing in Australia then! That's mad Mine were really pointy/sharp on one end and the gun was made entirely from metal (that's the only legal one that they use in doctor's offices). Yep, I wouldn't use the guns you described on my kids either. Go needles!
Well it's what I consider "blunt" yes it has a tapered tip which is "pointy" but it is by no means "sharp" like a hollow need.