A federal firearms license is the key differentiator between selling firearms legally and facing federal prosecution. Every merchant that works in this industry in the united states of America must have this license and should know every detail about it before accepting any payment and making any sales and even procuring inventory.
A federal firearms license is a license that is issued by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) in the United States of America that actually authorizes an individual or business to engage in activities like the manufacture, importation, or sale of firearms and ammunition. It is important to know that without an FFL license, if you deal in it commercially, then it is a federal crime.