[sheepdog]

I have a P11, and all of a sudden on all of my mags, I load a mag and fire the first shot and it locks open after ejecting the case.
I can manually push the slide forward and it will chamber the next round and fire.Again the slide locks open.
I have replaced the slide spring and it still does it.
Any assistance would be great full.

 

[Steve912]

Is the slide getting 'stuck' back,
or is the slide lock locking it back?

 

[jonnin]

have you tried another mag? Are you using unusual ammo (very large/heavy bullets, like the ~150gr stuff)? If its the slide lock, these can be things to check. If its getting stuck, this is irrelevant.

 

[GoesBang]

Move your thumb out of the way of the slide lock!

 

[sheepdog]

Is the slide getting 'stuck' back,
or is the slide lock locking it back?

Locking back as a empty mag

 

[sheepdog]

Move your thumb out of the way of the slide lock!

That's not the problem

 

[sheepdog]

have you tried another mag? Are you using unusual ammo (very large/heavy bullets, like the ~150gr stuff)? If its the slide lock, these can be things to check. If its getting stuck, this is irrelevant.

Yes a total of 8, they all worked great for years until now

 

[Steve912]

Ok, if you're saying the slide lock is activating early
(while there are still several rounds in magazine),
check to see if a bullet tip is pushing up the tab on
slide lock, the next time it happens.

I'd suggest letting someone else shoot it a few times
too, just to check that it's not you--pushing up the
slide lock during recoil. It can happen.

 

[KCAutoBob]

First thing I thought of was the spring. Okay, you've got that covered. The mags- all of 'em? No, not that... Okay, what just struck me was the fact that on my P11, I'd had a problem with the slide lock too. But on mine, the slide lock itself broke. Specifically, that little finger inside the mag well got busted off. Consequently, the slide DIDN'T lock back. Gun still went bang,bang,bang... I'm wondering if it could be that the little finger inside the mag well is bent, not broken, bent just enough to keep getting bumped up (maybe the magazine or a bullet) and locking the slide back?? On mine, it come into view and turns straight down to meet the follower.

Just thinkin' some more... You replied,"Locking back as a empty mag ", meaning, to me, you can drop the mag and the slide stays back, right? So, something is moving the slide lock to 'lock' position. What's that something and why's it now happening?

 

[GoesBang]

You replied,"Locking back as a empty mag ", meaning, to me, you can drop the mag and the slide stays back, right? So, something is moving the slide lock to 'lock' position. What's that something and why's it now happening?

No. When the magazine is empty the small indent on the follower engages the tip of the slide lock and pushes it up under spring pressure. When there is any amount of ammunition in the magazine it is impossible for the follower to engage the slide lock.

 

[BillGibbons]

Did you ever get this answered to your satisfaction? If not I may be able to help.