Folding the US AK47 receiver from a flat
If you really want to build the whole gun yourself you’ll want to know how to bend the receiver from a flat. Chris uses common bending tools along with a custom made jig (fixture). Starting with a standard flat receiver
Chris bends the new receiver into shape with a jig and an inexpensive press. After pressing the basic shape the rails are bent over with a hammer and soft metal block. The trigger pin holes are also attended too after bending.