New Phantom doesn't eject Mec-Gar magazines

[Continental Op]

I just bought a new Phantom.  It turns out to be a 2017.  It will not eject the "Optimized" Mec-Gar magazines with the blue followers.  It doesn't matter if it's 17- or 19-rounders, loaded or empty.  It has no problem at all with the two 18-round SP-01 mags that came with it.  Those do not appear to be made by Mec-Gar.  This is a real bummer because I already have quite a few of the Mec-Gar mags and don't want to spend $50 on SP-01 mags.

Looking in the magazine well, I notice two shallow rails lining what would be the grips.  I wonder if I sanded those down slightly, would the Mec-Gars fit better.  But, would that cause a problem for the SP-01 mags?

Any advice?

[Earl Keese]

I just bought a new Phantom.  It turns out to be a 2017.  It will not eject the "Optimized" Mec-Gar magazines with the blue followers.  It doesn't matter if it's 17- or 19-rounders, loaded or empty.  It has no problem at all with the two 18-round SP-01 mags that came with it.  Those do not appear to be made by Mec-Gar.  This is a real bummer because I already have quite a few of the Mec-Gar mags and don't want to spend $50 on SP-01 mags.

Looking in the magazine well, I notice two shallow rails lining what would be the grips.  I wonder if I sanded those down slightly, would the Mec-Gars fit better.  But, would that cause a problem for the SP-01 mags?

Any advice?

The Mec-Gar 19 round mags are 17 round mags with a plus 2 extension. It is fairly well known that those same 17rd mags sometimes don't drop free or even seat all the way in some frames. Usually this is a problem with pre-b frames but occasionally you see it with other models. The oem 18rd mags are just slightly slimmer.

[Tok36]

I just bought a new Phantom.  It turns out to be a 2017.  It will not eject the "Optimized" Mec-Gar magazines with the blue followers.  It doesn't matter if it's 17- or 19-rounders, loaded or empty.  It has no problem at all with the two 18-round SP-01 mags that came with it.  Those do not appear to be made by Mec-Gar.  This is a real bummer because I already have quite a few of the Mec-Gar mags and don't want to spend $50 on SP-01 mags.

Looking in the magazine well, I notice two shallow rails lining what would be the grips.  I wonder if I sanded those down slightly, would the Mec-Gars fit better.  But, would that cause a problem for the SP-01 mags?

Any advice?

All the the modern CZ factory magazines are manufactured by Mec Gar.

If i were in your situation i would mark the mag body and run it in an out of the pistol. Then look for marks to confirm where it is contacting.

Hopefully another forum member who has encountered this issue will chime in.

[Earl Keese]

The 18rd oem mags are made by MecGar, but to CZ specs. They are slimmer, that's why they will often fit pre-b frames when other mags won't. None of the MecGar branded mags share the same dimensions. The 16rd MecGars will often fit tighter frames though.