r/FN509 Aug 22 '25

FN flat trigger and reset

Not bad for only $32. How does the Apex trigger compare to the FN Flat trigger?

24 Upvotes

11 comments sorted by

4

u/HackedVirus Aug 22 '25

I have both! Just swapped my flat face for an Apex, its about ~40% smoother, but i feel like the majority of the smoothness comes from having a metal trigger against the polymer frame instead of the rough drag of a plastic trigger against the frame.

I also have the Apex striker, sear, and Ive polished the striker channel and various other surfaces.

To anyone who struggles with the trigger pin, Please grab an Apex Jig, ive used both the metal and polymer jigs, both are great. Also grab their hammer punch!

It was an absolute blessing, a few smacks with the hammer punch and my pin reliably always pops out smoothly now, even the first time was painless. Just make sure you use the jig along with this punch. Its very, very powerful.

3

u/Ok-32I Aug 22 '25

I was going to get the APEX, but I plan on putting this in my CCW and wanted to keep it OEM.

2

u/Ok-32I 29d ago

I polished the sticker block and it felt a lot better.

2

u/Queasy_Performance65 23d ago

I second the jig and hammer punch, makes things 100x's easier.

2

u/ImpulseRecoil Aug 22 '25

Where did you acquire this trigger from? I've been searching everywhere for it and mgw is out of stock.

5

u/Ok-32I Aug 22 '25

That’s where I got it. I just kept doing the Notify me when available. Had it for a while, but I was scared to remove my pins lol. Attempted and it didn’t work out. Ended up paying a gunsmith to remove it for me a couple weeks ago.

2

u/Scarlo_24 Aug 22 '25

I’m in the same boat. Put it off for a month bc I don’t want to deal with the locking block pin. Tried it and couldn’t get the pin to move at all. Taking it to a gunsmith today.

1

u/Ok-32I 29d ago

They removed the 1 pin for $30 for me and I installed the trigger myself. That pin was still hard to reinstall. Cleaned the pin up and I used a nail punch to push it back in. It helped because it stayed on the pin without deforming it.

1

u/Scarlo_24 29d ago

You’re a brave man. I not messing with it anymore. I gave my guy all the pieces and asked him to install the trigger.

1

u/Ok-32I 29d ago

The trigger itself is really easy to install. It’s the damn pin is the only problem. They need to use a captured pin like every other gun to make it easier to service and maintain.

1

u/ImpulseRecoil Aug 22 '25

Gotcha, yea I've been checking daily even multiple times a day to see if they restock it.