I believe that there are no 10rd magazines made for the 1911
in 9mm.
The Mec-gar's are 9rd and I have not heard of any other..
It would be possible to use 38super mags.. McCormick makes
a 10rd 38super mag..
If someone does make a 10rd 9mm I would be interested..
Yep, I checked my CDNN catalog and the Mec-Gars are nine-rounders. I'd give them a call anyway, as they probably know more about rare magazines than anyone.