Yeah, I noticed that too. For a second, I thought I was either tripping balls or it was just some other obscure french infantry rifle that was also commonly used at the time, but it was indeed one-to-one with the Italian breech-loading rifle, the Vertelli-Vitali, which I guess could have been leased to the French (somehow, as if Italy didn't support the Prussians and NGC,) but that would be near nonsensical.

The dev said their working on player-equippable FPW rifles already, but it seems they've relegated that as a low-priority addition to be added later, likely after the tank update they're speaking of.

If your looking for more accurate guns for the Franco-Prussian war, I would suggest using the revolver and musket from the US civil war mod. The musket works more like a Martini Henry rifle than a musket and the revolver looks similar to those used by the French officers. Its not perfect, but its what I use.

Btw these are player weapons, your out of luck with the npc weapons

Its not the 1870 italian Vetterli Vitali its a weapon on its own cant find any that would match its got a weird internal magazine like a Winchester Model 1873.