The reproductions were made from original Mauser pistols.
I have one of the Mauser pistols that were sold to the Chinese, then exported as collector items to the U.S. in the late 80’s and early 90’s, before Clinton banned Chinese imports, then made a deal with them. No rifles or pistols from China, but they got most favored nation status.
The Chinese loved the Mauser pistols. They could not import semi-auto rifles because of a treaty - I think after the Boxer rebellion - but they could bring in pistols, so they brought in a lot of Mauser Broomhandles.
I had a chance to shoot one old C-96 .30 cal about 47 years ago. It was like squeezing a lemon, and somewhere in that squeeze the pistol would go off an shoot about 2 feet of flame out the barrel.
Even with the hammer back it was still like squeezing a lemon.