You guys are the best.
I just ran a check on a web sit and found the following.
WINNER, NIPPES & CO.— Pennsylvania musket makers. Contractors
of July 20, 1808, for 9,000 Model 1808 muskets, five years dura-
tion. Of these 3,900 were delivered by Oct. 7, 1812.
And again your intuition on the barrel and stock being as one are correct, the tang is replaced as you stater it could have been.
This is in keeping with the hat plate which is Connecticut militia dating in this period according to the only one Iv found.
If interested in having a look at it , its a dandy at
http://pinterest.com/operahill/period-military/Thanks again guys.
Jo