This Thompson Center manufactured second variation trigger assembly is for the Seneca muzzle loading rifle and is in very good condition with light wear. The only difference between the first variation and the second variation is that the second variation trigger plate lacks the Allen hex head set (rear) trigger spring tension adjustment screw as T/C must have felt that this was not necessary for their muzzle loaders. (file photo)

Note: Thomas Center Seneca muzzle loading rifles with the following serial numbers have been observed with this part: 61629