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  #1  
Old 09-14-2017, 12:31 AM
BajaFishin BajaFishin is offline
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Default P80 PF940CV1 and ZEV Slide issue -

Hi CalGunners,

First of all, is there anyone familiar with PF940C that I can take it to fix the issue? I am frustrated and running out of ideas, I have watched just about every videos on YouTube about PF940C and I have tried every solutions that they suggest and watch out for and I still end up with a system that cost me a lot of time and money.

I have a OEM Glock 19 that is superb reliable, I have put over 1000 rounds with it and not a single hiccup.

scenario - put slide (ZEV) and lower (P80) together (without any upper part kit and lower park kit), just the lower, both rails and blank slide

problem - cock the slide back, slowly move the slide forward with low force, seems stuttering; not slick or smooth like Glock OEM.

I tested with:

Glock lower and ZEV upper OK

PF940C lower and Glock OEM Slide - OK, but magazine drop after few rounds.

P940C with ZEV Slide NO: One shot, ejects fine, won't rack the 2nd round, or jam.

* I have sand and polished front and rear rail
* I have sand and rounded off the rear rail corners
* I have tried 18lb, 15lb, and 13lb recoils springs.
* I have sand and polished the fire pin safety
* bend the ejector pin <- ended up buying another lower park kit, since I also sand the fire pin safety

* Call P80, they send me another rear rail, at first it was smooth, but after 6 rounds, same thing.

I have been working on this everyday for week and the half, neglected my wife and kid, now they hate me, this is expensive hobby and I just wanted to work, and spend time with my family.

Thank you for reading and thank you for the help.

Baja
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  #2  
Old 09-14-2017, 5:06 PM
Druskeezy Druskeezy is offline
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What gen is ur slide?
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  #3  
Old 09-14-2017, 7:16 PM
UclaPeon44 UclaPeon44 is offline
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zev slides fit on the tighter side compared to OEM glock. this is a big issue for home builders of p80 since hand tools use makes it next to impossible to for slide to cycle/function properly.
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Old 09-14-2017, 8:23 PM
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ar15barrels ar15barrels is offline
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Quote:
Originally Posted by UclaPeon44 View Post
zev slides fit on the tighter side compared to OEM glock. this is a big issue for home builders of p80 since hand tools use makes it next to impossible to for slide to cycle/function properly.
Put another way: The ZEV slides just don't work on P80 frames without a lot more work.

Easy solution is to run the sloppier fitting glock slide on the tighter fitting P80 frame and save the tighter fitting ZEV slide for the sloppier fitting glock frame.
Now you get TWO guns that fit tighter AND work.
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  #5  
Old 09-15-2017, 9:36 AM
BajaFishin BajaFishin is offline
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The ZEV slide is a Gen 3 DragonFly w/RMR.
I really want to get the combo to work. See pictures.

Randall, do you work on the Glocks? or anyone can work on the P80?

Thank you,

Baja
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  #6  
Old 09-15-2017, 9:39 AM
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ar15barrels ar15barrels is offline
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Quote:
Originally Posted by BajaFishin View Post
Randall, do you work on the Glocks?
I do barrel and trigger work.
I do not do slide and frame work.
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AR work: www.ar15barrels.com
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Foreign Semi Autos: www.akbarrels.com
Glock, XD and M&P pistols, Benelli and Remington shotguns: barrel, sight, trigger and receiver work.
Most work performed while-you-wait, evening and weekend appointments available.
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Old 09-15-2017, 10:13 AM
dagle dagle is online now
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Do you have tools to measure? If I recall correctly the rear rail module has slight tolerance. Try it in different positions, it may be off-center from the front rail causing the interference. If the width of the rails are larger than the slide groove widths, you can use a sharpie or dye to see where the interference occurs to file down the rail module(s).

Last edited by dagle; 09-15-2017 at 10:37 AM..
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Old 09-15-2017, 12:02 PM
sofbak sofbak is offline
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Also, I suppose if you're advers to cutting/machining you could try lapping them together.
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Old 09-16-2017, 4:58 PM
dagle dagle is online now
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Quote:
Originally Posted by sofbak View Post
Also, I suppose if you're advers to cutting/machining you could try lapping them together.
This works as well, but I respectfully disagree with this simply because it would widen the ZEV slide. I would much rather bring the nonOEM glock frame to OEM glock spec than to bring the slide to nonOEM spec.
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Old 09-16-2017, 9:13 PM
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Quote:
Originally Posted by dagle View Post
This works as well, but I respectfully disagree with this simply because it would widen the ZEV slide. I would much rather bring the nonOEM glock frame to OEM glock spec than to bring the slide to nonOEM spec.
The Zev slide is much tighter than OEM glock slide.
Lapping is not going to make it looser than an OEM block slide.
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AR work: www.ar15barrels.com
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  #11  
Old 09-17-2017, 12:54 PM
dagle dagle is online now
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Yeah absolutely, I just personally wouldn't modify the expensive slide when I could modify the cheap, untransferrable and replaceable 80% frame is all.
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  #12  
Old 09-21-2017, 11:41 AM
BajaFishin BajaFishin is offline
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I just got a caliper measuring tool which I think it's a must have if you're building out any 80% platform. This time I ensure the front and rear rails are equal in heights. I re-sand it and polish it for 30min, it seems slick and better. I will report back the update when next range trip.

Also, just a note, I tried the ZEV slide on a friend's PF940C lower and it's freaking tight and barely move. But he has the P80 compact upper and it's slick and smooth. I think for those who wants the cool look of ZEV slide paired with P80 lower, it's going needs a lot of work.
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  #13  
Old 09-22-2017, 5:35 AM
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Bladewurk Bladewurk is offline
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Default Zev slides

the Zev slides will require the Poly 80 locking block rails and/or Rear Rail module both to be reduced in size. And they must be in perfect alignment. This is compounded by some parts variances and so much more fitting is required.

If using a Zev slide you will want to dedicate that lower to just that slide. The one I saw needed the front rails mildly polished but the rear rail module needed MAJOR thinning in height and in length. Think half thickness, and edges trimmed and beveled to allow cycling without binding.
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