The population of Albania is about three and a half million. Not to mention all the hand grenades and military grade explosives looted from the military and police armouries. This gives you some idea of the number of military weapons in government armouries in this country. I personally have been inside a warehouse in Stirling that contained thousands of L1A1 rifles crated up for storage. We cannot dis-invent the gun.
Millions are in military and police storage facilities in every country.
A particular problem with a disarmed society occurs when weapons become generally available due to sudden social breakdown, or the insidious development of a large criminal class prepared to flout the weapons laws. The best solution is to promote the widespread ownership of weapons by responsible citizens, who can act to counter any threat to public order and peace in the event of a failure of government. An armed citizenry is the only shield against tyranny. Let's look to Switzerland, not Japan, for the model of how to integrate the power of firearms into the community.