USA
a lot
No.
The Nazis with other 25 million guns and they produced almost 250 billion ammo
There have been 2,500,000 million Glock 9's (Safe Action) produced between 1982 and present day. The place of origin of this product is in Austria and was designed in 1979 to 1982.
guns and vodka
I believe they are produced in Brazil.
whiskey, guns, ribs
Those guns are not mass produced therefore you cannot buy them. While those particular guns, if they even really worked, are not available, you can find real blow paintball guns. Just do an internet search for 'em!
what Cabinet office responsible for making better tanks and guns? <><><> Do not write in this section- it makes your question go into the "already answered" bucket. The Department of Defense is responsible for operation of the military in the US.
The same way they make any other mass produced product. Each part in made in a large number and then each part is brought together with other parts and assembled to make a final BB gun. Very few air guns are individually made.
The motto of PROGUN is 'Peaceful responsible owners of guns'.