Please folks do not say AK-47, you have not or never will see of have one. The last one was made in 1961. It just helps the libtards cause. Just like they are not weapons, they are firearms.
Opps kits or spring kits yes. a bolt maybe. Gas tube always.
One thing you have to remember is that when all hell breaks loose, your civil firearm only has to last as long as it takes to take a real one off a dead UN or Chi-Com, or whom ever invades us.