How much do you know about the recreator 80% recievers? If i add the rails will they come welded on or will i need to do that? Would i just have to drill and ream out the hole for the underfolder? I am seriously considering the recreator because of the off book and price benefit even with purchasing jig it is cheaper than two nodaks and the ffl transfer.
To bend your own, you'll need a jig, shop press and a spot welder.
To finish an 80% receiver, you'll need at least the spot welder.
Then you'll have to harden at least the ejector and holes. Some folks have hardened the entire receiver, but it's difficult for the average home builder to do so without warping.
If you ever sell your firearm (or if a family member does so after your gone), you'll need to mark it with the appropriate markings.
Larry