A West Virginia senator is inviting the National Rifle Association to move here as lawmakers pursue gun-control measures in neighboring Virginia, where the group now has its headquarters. The invitation came in a Monday letter from Republican Sen. Randy Smith to NRA leadership that said his home state lets residents carry guns without permits and its lawmakers have pushed to allow firearms on college campuses. The letter said, “Where Virginia is pushing for stricter gun laws, West Virginia has worked on and passed a number of legislation in support of gun rights.” The NRA did not immediately comment.