that what I'm dealing with is an 1855 Harper's Ferry, and the three-leaf sight leads me to believe the barrel may have been from a pistol-carbine. IF I were to build instead of by I would be looking for basic kit components for the pistol. A cursory summary may be found at
http://www.pride-net.com/1998/januar...war/harper.htm
and I thank you again for your interest and assistance.