Help identifying a Springfield 1840 flintlock

[Hungry Horse]

 This looks suspiciously like an old stage prop, built for the movies from antique parts. Remember those valuable antique parts are only valuable in recent times. That does look a lot like a Spanish barrel band, on upside down, as stated.

Hungry Horse

[Robert Wolfe]

Why are we thinking Spanish barrel??  Look like American proofs to me.

[Hungry Horse]

 It’s an American barrel, but the barrel band appears to be Spanish.

Hungry Horse

[Daryl]

looks like there is a liner in the barrel , am i not seeing a circle around that flash hole??

I'm seeing the same semi-circular thing you are , 2 shots. Having a large monitor helps.
I am still somewhat perplexed over the 'captured' ram-rod. Whomever did this 'transformation'
had a definite end result in mind.