I think that tater may be correct, it is possibly a reproduction 1853 enfield musket but the bands look wrong from all the pictures I've seen and there should be a crown behind the hammer as well as other british proofs... in any event it's probably a fake but I know very little on the subject and could very well end up being wrong.
ignore my complete lack of capitalization. I still have no problem correcting your grammar.
I never said half the stuff people said I did-Albert Einstein
You can't believe everything you read on the internet-Benjamin Franklin