I often see questions form people asking why drum magazines are not more widely used - the BAR and the MP40/I in particular. People often view the box vs drum magazine question simply in terms of capacity - where the drum is obviously superior. However, there are several other elements to the que...

Sometimes it makes sense to use convenient existing magazines. Sometimes it doesn't. Like all things in firearms design, magazine features are all compromises. Single feed vs double feed, polymer vs steel, and straight vs curved...one size does not fit all.

Today I am joined by Forgotten Weapons Field Research Assistant Clay to test out one of those super-extended 90-round AK mags that are so often seen at the junk tables of gun shows. How bad are they? Or do they actually work? Let's find out...

Thanks to Marstar for letting me use their RPK to ...

Thanks to Thomas for sending me a couple of these clips to try out!