I have a 1903 Turkish Mauser with an identity problem. It thinks it's a 1909 Argentine Calvary Carbine. The end cap is all that is from a 1909 but the rest is from a 1903 Turkish Mauser. I found it this way in a gun shop. It's well balanced and shoulders nicely but kicks like mule.
https://www.milsurps.com/images/impo...Turkish1-1.jpg