Can foreign immigrants legally hold guns in the United States? China immigrated to the United States.

Hello, the first condition for buying a gun in the United States is to hold a green card. Americans are Americans rather than people from many countries. It seems that all the people except the Indians are immigrants-besides, because pistols are easy to carry and hide, it takes weeks of training to buy them. Incidentally, according to American law, some submachine guns or unarmed carbines are also called pistols in the United States.