My Great-grandfather James William Boatwright, Sr., was a mechanic helping keep the machinery running which made carbines at the Tallassee Armory in a building (still there in 2007) rented by the CSA from the Tallassee Cotton Mill, Tallassee, Alabama, 1863 to the close.
(Family "legand" -- no paper trail.)
My Uncle, Marvin L. Boatwright, told me that his Grandfather, J.W. mentioned above, told him one day in 1915, as they crossed the dam, that he had "...worked in that little white building down there..." I found later that this building had housed the "stock shop". That building blew down in a windstorm in about 1995.
That shop was supposed to make about 3000 carbines.
In the book,
"The Army of Robert E. Lee"
Author(s): Katcher, Philip
Pub. Date: 8/1/1994
Publisher(s): Sterling Pub
there is a passage that says about 300 were ready to be shipped to Macon, Ga. on April 12, 1865. Some got to Macon, because there is one of these carbines in a museum up north that a yankee officer ripped off at Macon.
As far as I know, there are 5 to 7 authentic Tallassee Carbines extant today.
I can get more precise info later via e-mails.
Try browsing for "Tallassee Carbine".
James H. Boatwright