A gun offense can result in removal proceedings but will not result in inadmissibility proceedings. The inadmissibility provisions of the Immigration and Nationality Act do not contain any prohibitions against guns. Therefore, if a non-citizen who is not already residing in the U.S. is seeking to enter the U.S. and has committed a gun offense of some kind, he or she cannot be deported. However, if a non-citizen is already residing in the U.S, she or he can be deported for committing a gun crime.