Yes, if the employee is not a prohibited person (e.g., a felon). However, to sell handguns, a person less than 18 years of age must have the prior written consent of a parent or guardian and the written consent must be in the person’s possession at all times. Also, the parent or guardian giving the written consent may not be prohibited by law from possessing a firearm. Moreover, State law must not prohibit the juvenile from possessing the handguns or ammunition.
[18 U.S.C. 922(x)]