Re: NFA Form 5 transfer - heirs
My father's estate went through this a few years ago. I had the estate transfer a SBR to me, and we also went through the transfer of two machine guns to a buyer.
For either type of transfer, you'll need copies of the original registration papers. If you don't have them/can't find them, then you have to roll the dice and hope the BATFE will look them up. According to a friend who does a LOT of transfers, you'll probably be out of luck.
You fill out the forms, get your fingerprints done, etc. The administrator of the estate has to sign the transfer form. (You used to be able to see the form online to see what was needed). You then send it in, along with copies of the original registration papers & fingerprints and play the waiting game... The local Sheriff also has to sign something, either the original forms or something else, I forget.
If you get approved, those papers then go back *to the administrator of the estate*, not you. In my case, I wasn't notified and only found out about a month later by contacting BATFE and being told that it was accepted a month earlier, and my brother had been sitting on the papers for all that time without telling me... So I would recommend telling the administrator that you are very interested in when they come in and to notify you ASAP.
It wasn't too difficult and didn't cost much. The fingerprints were the highest cost item.