Picked up this hand ejector from 1905 and noted that it has a replacement barrel, a very professional job. Being more of a Colt collector I know less about S&W history,maybe somebody like Christy, who made replacement 1gen SAA barrels made them for S&W in the past. The ejector lug is dovetailed into the barrel very neatly and the front sight base looks to be part of the barrel itself. The back of the sight being bronze to improve visibility.