In Bowling for Columbine Michael Moore appears to get a free gun merely by walking in and opening up a bank account, that seems to contradict the 2-8 week waiting period.
"So where was his illegal gun? He obviously would have tried to get one if he spent $1100 on a crossbow.
He had the money and the motivation.
This is where the 'criminals will get illegal guns' argument falls down. "
I'm not sure i agree entirely with this, a random teenager will find it extremely difficult to get hold of a gun in a country with strict gun laws, but someone who has been in and around crime for years, i don't really think you are going to be able to stop them getting a gun if they set their heart on it. Even in countries like the UK and Autralia there is still 'some' gun crime (I know, i was held up at gun point). This doesn't validate their arguments of-course because it's patently obvious that the percentage of criminals carrying fire arms is vastly smaller in countries with stricter gun laws.