P-10C magazine drops while shooting

[quailman84]

I have a P-10C suppressor ready that is dropping magazines while shooting. The odd thing is it almost always happens when shooting suppressed and with 115 gr supersonic ammo. This has occurred now with 3 different magazines, and 3 different shooters. Until today it had only happened when suppressed and with supersonic ammo. Today it did it a couple times with 147 gr subsonic and once while un suppressed. You can just about count on it happening once or twice per magazine when suppressed with 115 gr ammo. In my searching I have been unable to find any account of similar issues.

This particular gun has the earlier ambidextrous mag release, and I understand this cannot be retrofitted to the reversible type. I am certain that I am not touching the release while shooting. It has happened with the gun clean and when dirty. I have experienced no other issues, and it had 550 rounds through it (bought new 3 months ago).

The only thing I can come up with is the nose of a bullet moving forward under recoil and hitting the magazine catch through the slot in the magazine. I have no idea how this could be fixed or why it would happen so often when suppressed.

Any ideas? I don't really want to send it in, but as-is I don't trust the gun.

[QuickDrawMcgraw]

I have three P10C

Long ago on a earlier suppressor ready version with the ambi safety - I also had the same magazines dropping out randomly.

I also noted that a CZ Custom slide plate (hello kitty ) would not fit on this gun - but would fit on my other 2 P10Cs.

I believe the slide was out of spec but I honestly do not know.

I sent the gun in - CZ sent me a brand new P10C suppressor ready and it had the new magazine release style.

Funny thing - my oldest P10C is non supperssor ready version with the old ambi safety and works like a charm!

[quailman84]

Thanks. It's good to know I'm not the only one who has had this issue. I suppose I'll be getting in touch with CZ.

[gmelo75]

My 2018 p10c its also having the same problem. Normal versión with early ambition mag release. I am sure that I am not touching the magazine catch button while shooting. I noticed for the first time 2 weeks ago at the range 1 drop in 150 rounds, at that moment the drop out coincides with a  bullet-jam (malfunction) so I though it was associated to that issue, but the day before yesterday it happens to me again during my first IPSC participation, no jam and 1 drop out in 100 rounds.  How do you solved the problem?

[quailman84]

I sent the gun back to CZ. They installed a new magazine catch and pivot pin. I have had no other issues, but I've only put about 150 rounds through it since getting it back.

[gmelo75]

I took my gun to my local CZ authorized gunsmith and he find an issue in one of my magazines, he solved and I went to the range and until now no problems after 50 rounds.