Its incredible to see the differences between the construction of the AR-15 and the AK-47. The AR relies on extensive use of forgings, extrusions, and machining (like those seen in 2A’s video). On the other hand, the AK uses as little of that as possible, using stamping wherever possible.
The same can be said for modern magazines. Injection-molded high-fiber polymers rule the day versus the AK which continues to sport stamped magazines (yes, there are injection-molded polymer magazines, but they come at higher cost and typically at the cost of some durability/reliability.
Matra Group, a company out of Bosnia and Herzgovina, has released a video showcasing just about the entirety of manufacturing AK magazines. Using sheet metal, stampings, and basic welds, the magazines come together quickly and easily with only the most basic of milling requirements.
Interestingly, there is some real hand-work involved making the magazine where I would have expected some automation. All the welds on the magazine are placed by hand (though nothing to the extend of Holland and Holland.)
For those interested in magazines made by the Matra Group, they are available in the United States from Gibbs Rifle Company. Gibbs offers them for wholesale or retail customers can pick them up from Old Western Scrounger at $11.95 per magazine. The magazines come with an “unlimited 5-year warranty.”