I've read alot of frustraitions individuals have been having with gun broker at least in terms of trying to sell their firearms and receiving payment as individuals even if they could simply ship them to an FFL. For whatever reason Gun Broker doesn't allow people to simply use Paypal or similar services for individuals. All they allow is merchant services for shop owners. Kinda rubs individuals who want to sell the wrong way. I know that Paypal doesn't process firearms orders and it's understandable to avoid Gunbroker to services that would sue them if they included them as an option. I guess for the individual all that's an option would be a check by mail.