92 mags can be made to fit many different pistols. however if one drills a new notch higher up on the mag then when one inserts it back into the 92 it will lock in prematurely. will need to insert with the mag release depressed. it basically renders the 92 mags useless in a 92.
as a beretta 92G fan, i would rather run the 92 mags where God intended, in a 92. YMMV.