This bill would relax federal restrictions on firearm sales across state lines by allowing licensed gun dealers to sell firearms to buyers in other states at temporary locations, not just in the dealer's home state. It changes the definition of where firearms transactions can occur and expands what counts as a person's state of residence for military members and federal employees, making it easier for them to purchase firearms in multiple states. The legislation affects gun dealers, manufacturers, and importers who hold federal licenses, as well as military personnel and federal employees stationed outside their home states. The bill contains no new federal funding requirements or implementation timelines. In essence, it streamlines interstate gun commerce by removing certain residency-based restrictions that currently limit where licensed dealers can conduct firearm transactions.