lets not forget Japanese culture is much different than ours. They're a very submissive government is always right type people and their society EXTREMELY shuns disobeying authority (whether it be police, parents etc)yep, it would be incredibly expensive to get an illegal gun and ammo
it's like that Chris Rock joke about making the bullets $1000 each
I had a friend that went to Japan, and tried to find weed. it's also highly illegal in Japan. he finally found some but it was garbage and super expensive (I don't remember the numbers). also if he somehow got caught with it, he'd be fuct. he decided it wasn't worth it
That country has a lot of problems in of itself. Also, its probably extremely hard for a foreigner to go to japan and find some chronic but I bet its relatively easy if you've lived there your entire life, if its anything we've learned from prohibition its that making a substance illegal doesn't decrease the consumption or access to it. Also as a foreigner getting in trouble in a foreign country is much more intimidating and scary and thus even approaching people to buy weed would be scary as hell.