Gunbroker actually guarantees the sale to the buyer, which means they will go after the seller and eventually refund your $ if the seller does not send the gun to you, so it is expected for the buyer to send payment and copy of FFL where the gun is to be sent 1st. However some buyers may aviod a seller w/ little or no feedback. I always ask for a postal or walmart $ order, and when some bonehead writes me a personal check anyway, I just hold their stuff until it clears ,no biggie. You also dont need an FFL to ship, just to receive, and a private seller can even ship to CA, where a dealer must register w/ that state 1st.