Good eye on the raw wood under the barrel band, Mike. I had a feeling it was sawn off, but now it's pretty clear to me.
If the barrel is indeed a replacement, then there's probably too little of the original firearm left to figure out what it once was.
Ah well, I suppose it wasn't meant to be. The design on the grip IS pretty neat, though. I've attached a better picture of it.
At least the flintlock is in great shape, considering it's likely over two hundred years old.
Perhaps one day I'll take it to a qualified gunsmith to see if it's safe to shoot.
Thank you, gentlemen.