I'm about to do a build myself as soon as my receiver gets here. I've built plenty of FALs and AKs and I'm hoping it won't be too dissimilar in process. Only thing I'm envisioning being an issue is headspacing the bolt. I don't have any guages so I'm going to try doing it with spent 5.56 cases and electrical tape, LOL. Crossing my fingers I don't get a bolt in the face or loose a hand.