‘How to distinguish a Russian AK-47 from a Chinese copy’

Graphic with characteristics.

https://www.rbth.com/science-and-tech/326598-how-to-distinguish-russian-ak-and-chinese-copy

The best part, though, is in the comments:

One works, the other doesn’t.

You know, everything in China can explode, except their grenades.

Cheap and plentiful everywhere except America.