Yes, Mec-Gar magazines will work.

Yes, the Mec-Gar magazines will fit & function properly.

yes the mecgar 10mm mags will work however I can not find any mecgar 10mm 1911 compact or officer mags standard or commander mags will work however they will extend below the grip metalfor has a very good 10 mm compact,officers mag here https://gunmagwarehouse.com/metalform-officer-1911-10mm-stainless-steel-7-round-magazine-w-welded-base-plate-round-follower.html

Hi Robert and welcome. The Mec Gar 1911 10mm magazines will function no issue. Cheers, stay safe and enjoy!

I use them in my Iver Johnson 10mm.