as far as the fed gov is concerned it is all still illegal.
get arrested for an oz of pot and it could be a misdemeanor depending on where you live. get caught with an ounce of pot and handgun and it is a mandatory minimum 5 year sentence.
Actually no-- The gun enhancement is for, "Having/Using a Firearm during the commission of a Felony." If there is no Felony, there is no enhancement--