Help! PF9ss Issues

[user10]

Started building this Pf9ss after I found it in the back of my safe.. decided I’d do everything the right way and got a dremel press, the rights bits etc (as MGB recommends) Drilled holes, cleared the channel, fit RRM (had to slightly open the RAIL pinholes like MGB did in his tutorial) and assembled my frame. Build passes all function test but has these 3 small issues.

1. The trigger housing is unable to sit flush against the frame.. (IDK if this is an issue unique to the Pf9ss) I attached a side by side comparison with a Pf940c.

2. My ejector is lightly rubbing against my slide. Even though I am using all OEM parts slide and lpk.

3. My slide gets caught up returning to battery ONLY if
1. I am holding down the trigger
2. I slowly ride the slide forward.

I believe the ejector rubbing is due to the housing not sitting flush.. But even when I completely strip the frame and just put the housing in- it’s not able to sit flush even with no pin. I polished my shark fin, my rails (level sand) and my ejector. Problems are still persisting, although minor.

Thanks for your help in advance!

 

[Racer88]

I haven't built this model, yet. Got one sitting in my safe, too!

But someone who has experience should be along.

Thanks for joining the forum and participating by posting! When you get a chance, please write up a quick “introduction” (or RE-introduction if you were a former MGB forum member) of yourself over in the Introduce Yourself! section. Tell us about yourself, your building experience, and how you found the forum.

Jump into other threads, too! Come on in... the water's fine!

 

[user10]

Forgot to mention that I haven't broken this in yet. Probably racked it under 200 times.
Also, I have another one of these PF9ss frames unfinished that I put my trigger housing in, to see if I could get it flush.. ended up the same (not flush)

 

[user10]

I haven't built this model, yet. Got one sitting in my safe, too!

But someone who has experience should be along.

Thanks for joining the forum and participating by posting! When you get a chance, please write up a quick “introduction” (or RE-introduction if you were a former MGB forum member) of yourself over in the Introduce Yourself! section. Tell us about yourself, your building experience, and how you found the forum.

Jump into other threads, too! Come on in... the water's fine!

Haha great! Will do.

 

[FrankenGlock]

You identified the issue. The trigger housing is sitting too high. Are you using OE Glock housing and trigger arm or aftermarket?

 

[user10]

You identified the issue. The trigger housing is sitting too high. Are you using OE Glock housing and trigger arm or aftermarket?

I am using all Glock parts sourced from MGB's site. I have no clue how to lower the housing as I am physically not able to press it down any further (even with no pin or rails)

 

[FrankenGlock]

You can take a little off the backside of the housing or wherever it is getting held up so it can physically sit lower. Sounds like it may be sitting high in front too. Do you have a picture of the frame with housing in it but with the slide off?

 

[user10]

You can take a little off the backside of the housing or wherever it is getting held up so it can physically sit lower. Sounds like it may be sitting high in front too. Do you have a picture of the frame with housing in it but with the slide off?

I am a little hesitant to start removing material on my housing. But that may be what I have to do. Another thing- as of now my pinholes line up perfect with my trigger housing holes, if I lower the housing then the holes won’t line up I’m assuming?

 

[FrankenGlock]

Can you take a picture from the side so I can see if the trigger housing is canted?

 

[user10]

Can you take a picture from the side so I can see if the trigger housing is canted?

 

[FrankenGlock]

Yeah, looks like it’s riding a bit high. Start with the least important parts of the housing first. If you remove a bit from the feet of the housing, does it go further down? Is the housing aligned with the trigger housing pin hole? Anything you do to drop the housing lower will also drop the hole alignment. If it is not rubbing too much, you can file the top of the trigger housing and a bit off the top of the ejector. You will also need to take a bit off the top of the vertical extension on the trigger bar. I’d start with the e housing before trying to work the VE. Sanding a bit off the front of the housing will cause it to lean forward a bit and they may give you the clearance you need for the hood of the slide. You have options and there are many ways you can get it to work.

 

[user10]

Yeah, looks like it’s riding a bit high. Start with the least important parts of the housing first. If you remove a bit from the feet of the housing, does it go further down? Is the housing aligned with the trigger housing pin hole? Anything you do to drop the housing lower will also drop the hole alignment. If it is not rubbing too much, you can file the top of the trigger housing and a bit off the top of the ejector. You will also need to take a bit off the top of the vertical extension on the trigger bar. I’d start with the e housing before trying to work the VE. Sanding a bit off the front of the housing will cause it to lean forward a bit and they may give you the clearance you need for the hood of the slide. You have options and there are many ways you can get it to work.

I removed some material from the bottom of the housing. Doesn’t feel like it did anything. It’s worth mentioning that the housing hole lines up perfect with the frame hole, so if I end up lowering this it won’t fit..
I am scared to do any other material removal, unless a better option presents itself I think I’ll just leave it as is and hope this wears in.
Some guy on reddit said the gap is normal-

 

[FrankenGlock]

File the top of the housing so it stops rubbing or rack the slide a few hundred times with the trigger pulled back as it should do the same thing but with a little more work.

 

[user10]

File the top of the housing so it stops rubbing or rack the slide a few hundred times with the trigger pulled back as it should do the same thing but with a little more work.

Ok- so to confirm, I am removing material from the top of the ejector and the top of the shark fin (what you called the vertical extension)
The ejector to stop the rub and the shark fin to stop the slide from getting caught up when my finger is holding the trigger down + riding the slide forward.

Was thinking of using a dremel with a 320grit sanding wheel on low power to remove tiny bits slowly until the issues stop.

 

[FrankenGlock]

A flat file on the housing and ejector will be best. Make sure to put something on the housing so you can see where it is rubbing before you remove anything. Dry erase marker will work fine. On the vertical side extension. Remove a little where it is rubbing and reinstall until you get it just right. Don’t go to town on either part as you can’t add material back. Small bits and cycle until you get it right.

 

[user10]

A flat file on the housing and ejector will be best. Make sure to put something on the housing so you can see where it is rubbing before you remove anything. Dry erase marker will work fine. On the vertical side extension. Remove a little where it is rubbing and reinstall until you get it just right. Don’t go to town on either part as you can’t add material back. Small bits and cycle until you get it right.

Used a marker and removed some material from the top of the ejector. It’s still rubbing but I already removed a good amount of material so I think I’ll just leave it. I used all oem parts and built this correctly and am still somehow having issues. No double stack build has done that.

 

[FrankenGlock]

Used a marker and removed some material from the top of the ejector. It’s still rubbing but I already removed a good amount of material so I think I’ll just leave it. I used all oem parts and built this correctly and am still somehow having issues. No double stack build has done that.

Hand cycle it a few hundred times and it should seat everything and work fine.

 

[Bongo Lewi]

Asking the obvious: Are you sure that is a G43 Gen 4 compatible trigger?

If the trigger is G43/48 compatible or OEM there is no way you would need to modify the housing and ejector.

It appears that you are using an OEM G43 slide. So that is unlikely to be the issue.

 

[user10]

Asking the obvious: Are you sure that is a G43 Gen 4 compatible trigger?

If the trigger is G43/48 compatible or OEM there is no way you would need to modify the housing and ejector.

It appears that you are using an OEM G43 slide. So that is unlikely to be the issue.

Yeah dude, it’s all OEM bought from marinegunbuilder. I made sure to get the G43 OEM lpk and oem g43x slide. I just filed off a good amount off the top of my ejector as it was literally scraping away at the bottom of my slide. I have no words My pf940c and pf940v2 went together like legos with OEM parts and this pf9ss is just straight trouble.

 

[Racer88]

Yeah dude, it’s all OEM bought from marinegunbuilder. I made sure to get the G43 OEM lpk and oem g43x slide. I just filed off a good amount off the top of my ejector as it was literally scraping away at the bottom of my slide. I have no words My pf940c and pf940v2 went together like legos with OEM parts and this pf9ss is just straight trouble.

That leads me to believe the frame holes (specifically the trigger housing holes) were mis-drilled. And it's jacking up that trigger housing assembly. Is that possible? Just spitballing here.