Originally Posted by BamaBud
Do the SF models take a different mag? I had a G21sf owner tell me his mags won't fit my G21.
The G21SF owner is misinformed about factory mags. There is no difference in the dimensions of the magazine cavity between the standard frame and SF frame. Any mag that functions in the G21SF will fit a G21.
There are some nuances to the Gen4 pistols, where only Gen4 mags will work if the reversible mag release has been switched to left-hand service. Furthermore, the first models of the Gen3 G21SF, with the original ambidextrous mag release (different from Gen4 reversible mag release), require a mag with the center notch for the ambi mag catch
, but we don't need to get into that.