As above, they should all be built to the same specs - As long as we're not talking Officer's model format (with the shorter grip).
However, 1911s are pretty famous for some individual pistols needing particular types of magazine and/or ammo. Yours is probably fine with generic mags, but there's no way to know until you try your specific combination.
Some brands and models of magazine are probably "best in class" - For 45 I think it's Wilson and CMC, maybe it's the same for 9mm (maybe not).