I've sold on here and other forums before and it's pretty easy. I only ship from my FFL to the buyers. Once a deal is made and I receive payment (either paypal or money order) the buyer has his/her ffl fax a copy of the license to my FFL. Once they have it, I drop my gun off and away it goes. I'm a regular so they treat me well, box it up and only charge me what it costs them. I have bought guns form sellers who ship to my FFL themselves, which my FFL does allow (not all do). That's how I do it and have not had any issues yet. It's easier in my opinion then shipping it yourself. Good luck with your sale, once you get thru the first one it's easy after that.