Trooper my comment was inferring that LT was not correct in his assertion that 80%'rs can be transferred/inherited. Personally I have nothing against anyone who takes on the ownership of personally constructed weapons, but they are not for me. At least half LEO's are flat not familiar with them. If you are stopped and your weapon inspected for safety purposes, they see no serial number a wig out. Not worth the hassle for me. As I understand it however, under NO circumstances can you transfer a weapon you built from an 80% lower, unless you are licensed to do so. Not even intrafamilia. For anyone considering taking on the venture of an 80% build, please consult a GOOD firearms litigator....period. It is worth a half hour of attorneys fees.If you are looking for a "crackdown" instead of reasonable safety regulation, keep dreaming up things like "intrafamilia transfers of 80% r's". If you make it so no simple solution can work, guess what you are going to get?