Reading on forums I hear that anyone doing an AK build or putting together their rifle has to do it themselves by law but I also hear people offering gunsmith services to do the work. I'm trying to get an idea on what kind of work can be done on an AK rifle. I assume any kind of receiver work is out which sadly is what I'm having the most trouble with. What about headspacing and barrel population? I'm trying to do an RPK build and I've spent way too much on my mess ups and just want to get the thing done. Nodak Spud hasn't had any Romanian RPK receivers in stock for a long time other wise I'd just get one of those.