Yes it is a reproduction, still a good looking rifle. During the Civil War.... the South Sent gun buyers over seas. The went to France, England, Germany and other Eastern European country's. The bought as many old muskets they could. Trying always to buy 58cal. to try to only have one caliber. So they had no problems as far as supply. Sometimes they didn't get 58s, but they tried to stay with 58s. The south had no steel to make rifles or hand guns. That is why they had a lot of brass framed revolvers. That is why they went over seas. After about a year the Union started doing the same. Not because the lack of muskets. But, to try to buy them before the Rebs.
If you look at my avatar, that is an original 1857 Tower of England

Two more pictures of my Tower. However this one
I think came from the Middle East. Although all

writing is in English, not Arabic. Which they say
there should be. For me I don't care where it
comes from. It is 157 years old. And fun to
shoot.