Message sent back on the Trapdoor in short the barrel / receiver are an 1873 trapdoor made in 1883 , the stock and breech block are from an 1884 . It does have a Buffington sight from an 1884 . Building these from parts was pretty common in the early 20th century and its an old refinish . I would value it at around $700 to $800 as a shooter as it has no specific collector value.