Who makes weapons?
Statistically, this is an easy one. The U.S. Russia France Not-So-Great-Britain, and of course China! The top five arms makers are these countries; they are also known as the U.N. Security Council.
from the good folks at wikipedia.org (in green)
The members represent the countries considered the victors of World War II, including France, which was one of the overrun countries of Europe that was liberated through the efforts of Canada, the Free French Forces, the United Kingdom and the United States. Each of the permanent members has power to veto, enabling them to prevent the adoption of any “substantive” draft Council resolution, regardless of the level of international support for the draft.
Who distributes them?
see above culprits. The next eight or ten countries who make and distribute weapons of every sort, in market share, begins with Israel. Is it any wonder? They are in the war business, like the U.S. China France Britain and Russia. Just at a smaller scale.
Who uses them?
Haters everywhere. Criminal Scum, Gangsters, Police, Soldiers, Sailors, henchmen of every sort. Organized and funded by the flat world religions, with the exception of China. They are a world unto themselves, in sheer size; they are hungry and we have the food.