I have an old Yugo AK-47 under folder kit that's been sitting in the basement. It has a bulged trunnion and threaded barrel. The original receiver was a stamped one so I was going to make a new one for it. I'm an aircraft sheetmetal tech so that won't be hard at all.
What are the advantages/disadvantages to this style or model? Is it a good design? Durable? Flimsy?