There’s some subtle differences in the frame shape and other things that I’m too dumb to articulate. The only marks I can see are import marks from “CAI” - Century International Arms, which would be strange to see on a USGI 1911.

I think this model is a Star BM, and surplus retailers were hocking these things for ~$250-300, about 6/7 years ago. I almost got one but decided against it.