Most Americans think of the AK-47 as "the bad guys' gun", and not without reason: This was/is the gun of all communist nations, and the Russian military under Vladimir Putin.
The AK is also the gun of choice among homicidal Muslim radicals. This is the gun that Allah's warriors typically fire right before joining their seventy-two celestial virgins.
None of these associations diminish the AK-47 as a technical achievement. Durable, reliable, and easy to use, this is the ideal gun for insurgent warfare.
The AK-47 is also the only modern firearm to be commemorated on a national flag: It appears on the flag of the African nation of Mozambique.