I've seen a few of the Communist Chinese conversions that came in with the boatloads of Broomhandle Mausers in the 1980s. The obvious part of the conversion is the frontstrap filed out paper thin to make room for a 7.62x25 magazine. Prices were high enough that I did not buy one to study closely, but there had to be a lot of work in there to enlarge the magazine well and reduce the bolt face, extractor, and ejector. Not to mention making or sleeving a barrel and making a magazine. Crude work, but a lot of it.
You would think an enterprising American would have cut up a cheap Philippine or Chinese 1911 copy by now instead of just posting on the internet.
I have a few facts and a lot of opinions.