P-10C for P07 Mags

[sfumato]

Been running my P07 for about a year now with no failure. Lovely! Picked up two CZ11421 CZ P-10 mags  which are suggested as replacements for 'old' P07 mags. Both gave me regular failures every 3 or 4 rounds, crashing the ramp. Is it break in issues, or are others having similar issues?

[Claymore504]

The P10 mags are standard now for the P07 / P09 series. I have not had any issues when I started adding P10 mags to my collection. May be break in issues. If still doing it after a few uses, maybe contact CZ. Not sure what they will do about mag issues.

[Whereisit]

I took my used p10c to the range this Sunday for the first time. According to previous owner it had less then 200 rounds put through it.

I load both magazines. Take one put it in and it did really well. Grab the second one and the slide won't release. The round is hitting the feed ramp. I play around with it and I could only get it to work if I slowly released the slide. That magazine felt more loose then the first one. It felt like it wasn't fully clicking in. I unloaded it and decided to ask a range employee for help. He reloaded it with 3 rounds released the slide and it worked fine. Lol... He looks at me, smiles and says "it works" and we both start laughing. I grab that mag, fully load it and it fits the magwell as it's supposed to. Slide releases and no jam. It shoots fine. I can only think that this mag was newer. The previous owner had four p10c's... So who knows if he just grabbed whatever mag he first seen.


I had the same issue with my 43x using sheild arms s15 mags. They were initially really loose and wouldn't release as it should. Putting them in and releasing them a few times fixed it .

[sfumato]

Iv fully loaded the mags, and will let them sit for a while to see if that eases the tension on the mag spring.

[gwes351]

My experience has been mags either work or they don't (don't work either new or at some point due to wear or damage - to feed lips especially which is almost undetectable with naked eye).   The only mag "break in" I;ve noticed is getting last round into a new mag (uplula is your friend in these cases).  I can count on 1 hand the number of mags I;ve had a true function issue with - won;t feed or lock back on last round primarily (as long as my thumb wasn;t on the release lever preventing lock back).  When that happens that mag is marked and is either discarded, or used for practice only.  Any mag I may use for personal protection gets about 100 rds through it for verification - first.  Mags can be expensive, but I would not use one for serious purposes if it is the least bit "temperamental".     

[sfumato]

In full agreement there.