P01 magazine drop

[warbird1]

I recently bought a very slightly used P01 Omega from a local shop. First 100 rounds were great. Then it started dropping the mag every other and sometimes every round fired. Compared it to another P01 that I own and the mag release is easier to push in on the Omega. Takes only a hair of pressure to drop the mag. Checked my grip and that is not the issue. Ordered a new spring and plunger for the magazine release from CGW and installed it today. No change that I can tell. I intend to fire a couple of mags on Tuesday to confirm. If it still has the issue I am at a loss as to a solution. Looking for a fix. Help appreciated.

[M1A4ME]

Seen this before on non-CZ guns but can't say yours has the same cause.

Pistol empty.

Take a look at the magazine release button the right side of the frame.  It's flush with the frame, or should be.

Insert an empty magazine.  Look at the right side of frame again.  Is the mag. button still flush with the frame?  If not it's either a magazine problem (made wrong) or a frame issue (made wrong).

Not saying CZ would make a frame that's out of spec.  I've seen a similar issue on a Masterpiece Arms semi auto .223 that uses AR15 magazines.  I've seen it on a high capacacity 1911 frame (can't remember the brand.)  Modified the magazines on the high cap. .45 and went through a pile of magazines to find 10 that worked in the MA .223.

Good luck with it.  It could just be a mag. release spring issue, but the stress on the button wouldn't be pushing the button to the right (to release the mag.) but downwards as the top of the slot in the magazine should be fully sitting on the mag. release button and pushing it downwards.

[warbird1]

tried the empty magazine test. Flush either way. Taking it to the range tomorrow with two different magazines of a different type. I will see what happens.

[M1A4ME]

Well, that sounds like the magazine to magazine release button fit is good to go.

You say you changed the spring and it's still real easy to press and release the magazine.  If the spring was "bad" it would be reasonable to believe the new spring would have made a difference.

[warbird1]

Just returned from the range and had zero problems today. I admit I had no confidence in the new spring as it felt to me like the old one.  Problem seems to be solved however. I have one more new spring and I have put my name on the waiting list for a new mag catch at CZ-USA just in case. Thanks M1A for the help. I needed a sounding board.

[M1A4ME]

Glad to hear a positive report.

Don't give up on it.  If it's fixed, truly, you'll see as you keep going to the range.

And, toss that old spring in the trash (or keep it just long enough to compare the length with a new spring so you've got a "yes, it was different" picture in your head (or take one with your phone) for the future.

I did that awhile back with M&P 9 magazines.  I put +2 bases on some (new and old) and started having failure to lock back the slide after the last round issues.  Took the mags. apart to inspect/clean and wax and immediately saw the difference between the older springs (magazines from my 1.0 9MM bought 12 or 15 years ago) and the new mag. springs for the 2.0 9MM I'd just bought.

You can see how the two new mag. springs were longer than the older mag. springs.  Bought a bunch of the Wolff springs (the +10% strength) and replaced all the old ones with the +2 bases on them.



Funny piece of info is the +2 bases CZ sells for CZ mags. fit the M&P mags. just fine, too.  I had a bunch left over and tried them and they fit/worked.

[warbird1]

One thing for sure is I am not giving up on it. Like it too much for that. Hopefully no further problems. I bought it off consignment at a local gun shop. I do have a backup spring as I ordered two just in case. I do like to be prepared.