The president’s eldest son is a key player in GrabAGun, a company that hopes to dominate the sale of firearms through the mail in the United States.

The president’s eldest son is a key player in GrabAGun, a company that hopes to dominate the sale of firearms through the mail in the United States.

Trump Jr.-backed GrabAGun could benefit from proposed ATF rule easing online gun sales. Critics cite safety risks while supporters see growth.