I know nothing about GunsAmerica but Gunbroker.com requires a credit card number in order to open an account. This in my estimation assures fairness for both the seller and buyer. I am very happy with my sells and purchases on Gunbroker and highly recommend the system to all my friends. It beats taking a firearm to a gun show or dealer and receiving about 1/3 of its true value in a trade. The FFL transfer system allows people to transfer firearms legally but all using this system must realize crooks do exist in our society.