Most of the Model 1865 Spencer carbines were manufactured in 1865 and 1866 after the end of the Civil War. Many were used during Reconstruction and in the Indian Wars before the Springfield Trapdoors were widely issued, with many seeing continued use by Native American groups and Western settlers into the late 19th century. Features blade front and folding ladder rear sights and the Stabler cutoff. Serial number "21892" marked on top of the frame and "5945" on bottom of the replacement barrel. Small single letter inspection initials marked on various components, and "J.L.C" (Joseph L. Cottle) inspection initials marked on the left breech end of the barrel.