The FN FAL was often known as the Right Arm of the Free World, because during the Cold War when most Communist nations were using the AK-47 or some variant of it, most of the Western nations (except the United States), were using the FN FAL or some variant of it. The FN FAL is a .308 Winchester battle rifle, that is available in a number of different configurations and barrel lengths. It comes standard with twenty rounds in the magazine.