Edit: if you haven't seen the movie, it's quite facinating.Of all the weapons in the vast soviet arsenal, nothing was more profitable than Avtomat Kalashnikova model of 1947. More commonly known as the AK-47, or Kalashnikov. It's the world's most popular assault rifle. A weapon all fighters love. An elegantly simple 9 pound amalgamation of forged steel and plywood. It doesn't break, jam, or overheat. It'll shoot whether it's covered in mud or filled with sand. It's so easy, even a child can use it; and they do. The Soviets put the gun on a coin. Mozambique put it on their flag. Since the end of the Cold War, the Kalashnikov has become the Russian people's greatest export. After that comes vodka, caviar, and suicidal novelists. One thing is for sure, no one was lining up to buy their cars.
Yuri Orlov in Lord of War
Cheap. Functional. If it jams, kick it. If it still doesn't shoot, buy another it's still cheaper than anything that's going to work better.
It's like Honda. Cheap to run, cheap to fix, last forever, parts all interchangeable. Just keep it oiled and you'll have it forever.