The AK-47 is perhaps the most widespread firearm in the world. Carried by American enemies and allies alike since 1947, it is the standard infantry weapon for 106 countries. There are an estimated 100 million AK-47s of a number of variations round the world. It's a popular weapon among firearms enthusiasts, professional soldiers and terrorists alike. In the United States, it has a reputation as the "bad guy" weapon, given its history and usage among so many former enemies. Learn more about your ad choices. Visit megaphone.fm/adchoices