Hello,

I am new to the P320, having just picked up a 2021 production 4.7" 9mm.


In dry firing the trigger, it breaks crisply enough, and the pull weight is acceptable [especially if it is for defensive uses].

However, I would love to reduce the reset travel, and the overtravel.

I understand there is no way to eliminate all of either. It isn't a 1911, for example.

In doing the research, I've found the Grey Guns trigger upgrade parts, and the Apex Tactical trigger upgrade parts.

It seems the Grey Guns focuses on the overtravel and the crispness/lightness of the trigger 'break', with a bit of reduction of reset.

It seems the Apex Trigger and trigger bar do more to reduce the reset and overtravel, but not as much for lightness [unless going to the competition only setup].


Am I understanding the differences between the two systems correctly?

Is there another company I am unaware of that is also doing this for the P320?



Ideally, I'd like the trigger to be around 4-5lbs, but with the least overtravel and the least reset possible.

Part of me wonders if I can use the Apex trigger bar and trigger with the Grey Guns sear- to get the best of both worlds.

Again, I KNOW there will be both- and that is ok. And, my trigger 'break' is crisp and light enough.

After all, I still love the Browning Hi Power, despite it's very long reset.


Anyone care to share any tips for me? I'd appreciate it!

 

Also, you might want to check with Robert Burke, aka The Sig Armorer. He works on the classic P-series SIGs and the SIG striker guns, among others. I have no experience with his striker gun works but will vouch for his exemplary action works on the classic SIGs.

quote:

Originally posted by 12131:
Also, you might want to check with Robert Burke, aka The Sig Armorer. He works on the classic P-series SIGs and the SIG striker guns, among others. I have no experience with his striker gun works but will vouch for his exemplary action works on the classic SIGs.

The factory trigger on my P320 was digging into my trigger finger, and it turns out that Robert has designed a trigger that not only solved that problem but has enough difference in the geometry so that the pull is more natural and my accuracy improved. I highly recommend contacting him.

The only mod I make to a 320 FCU is to install a flat trigger. Unless it came OEM with one. I then work with the gun to learn its trigger.

Armory Craft makes a couple of trigger options.
Very happy with the one I used in my P320


Bob

Given the somewhat "unique" way the 320 carries with a fully cocked striker, is that really a good idea?

quote:

Originally posted by MNSIG:
Given the somewhat "unique" way the 320 carries with a fully cocked striker, is that really a good idea?

Not exactly unique...a bunch of other popular striker-fired guns, including the XD, M&P, and Walther PPQ/PDP use a fully-cocked striker. As to the wisdom of modifying the trigger pull on such a system...I'd say that's a decision that the end-user has to make for himself.

I have been happy with the GGI triggers and have them in all 4 of my p320 guns. In all fairness, two were built on the custom works FCU, one was a custom works built gun and the last an X Five Legion, so the triggers were all pretty darn good. Being able to adjust away the over-travel makes the reset feel perceptibly shorter even though it is not. All of my triggers are below 4lbs with the Legion being below 3lbs without changing a spring.

P320 flat trigger (SIG OEM drop-in part) feels better than the curved and averaged 4# 2.2oz this morning -- light enough for me. Manual safety.

Interesting that the trigger weights dropped almost every pull during the test so some were actually under 4#. Maybe the trigger needs to warm up to get an accurate reading?

-- Chuck

I prefer sticking with OEM parts, and I agree with the other posts that the SIG flat trigger is a big improvement over the standard curved trigger. It’s easy to install in about 5 minutes, and I feel like it gives me a more consistent trigger pull and reduces my tendency to pull my shots left as my finger rolls on a curved trigger. I think it’s worth trying before investing in an aftermarket trigger.

My P320F was worked on at Gray Guns, and had the factory upgrade as well. Breaks at about 3.5 lbs., and is super smooth. Most of my P320s have the flat trigger. It is excellent, but having some curve to the trigger would probably be an improvement. With the flat trigger, I cannot really tell where my finger is. Middle of the trigger, or is it lower down? There is no tactile feedback.

quote:

Originally posted by Vette02:
Armory Craft makes a couple of trigger options.
Very happy with the one I used in my P320


Bob

^This. All day.

Gray, Apex, and Armory Craft are all good. For the P320, I personally have an Apex flat trigger. While I can recommend Apex as a company, I think the trigger I have is one that they don't make anymore. That said, I got it specifically to address the reset and overtravel--same as you're looking to do--and it was worth the investment.

Th P320 is a mass-produced, striker-fired gun that pieces together by snapping the FCU into a polymer frame without any additional fasteners. It's a great weapon, but there's only so much that can be done to improve the trigger.

Armory Craft has adjustments.

https://youtu.be/WibftlissZc?si=kqwEGuiXBiZcOuZo

I have a P320 with the Grayguns competition trigger kit. It is lighter, smoother and shorter reset than stock. It is one of the lightest trigger pulls of my competition pistols but it still has one of the longer resets compared to a Glock timney or Walther performance dynamic trigger or any tuned single action like 1911, model 41, sig 226 x5. I hear that Robert Burke has a trigger job/kit which might produce a crisper shorter reset. If I pick up another 320, I might get one installed for comparison.