Seems to me someone else was / is marketing a line of Turkish semi-auto's, though I cant remember who. Might very well be the same gun, if you can find who. Might want to try Googling some, and find the original makers address, and write them. Might get lucky, as I doubt the actual maker is out of business. Another option would be to find a real gunsmith (not a parts changer gunsmith) who knows how to heat treat a piece of metal, and how to use a file to make you one that will last.
Larry