Ok for real my grandfather made a single shot 22 out of a revolver body and a piece rifle barrel. he used the original sights brass welded on. Its a open top revolver body from a 1899 safety police Hopkins and allen.....its a neat lil gun and im wondering if its even legal. Its been around for at least 80 years and im just nervous owning it although there gonna hafta pry it from my cold dead hands.....any ideas