The legal definition of "sold" is when an agreement is made, not when something is paid in full. Technically if you order today and pay whenever, it has been sold today.
None of that makes any difference if the sissies ban or restrict every semi-auto in the close future imho.
Might want to confirm that with ATRS/Shaun... as here is what I was told on my order
"or were you paying in full to close the invoice, and not have to deal with C71?"
I personally dont consider something sold/closed until the balance owing is paid in full.
Example (and hypothetical), I sold a restricted firearm on the EE... but the buyer requests to do it as a payment plan. Do I initiate the transfer into the buyers name now, 1/2 payment, completed, or somewhere inbetween?
My eyes/opinion... when it's been paid in full.