[JoeyBones]

Anyone tried this? The idea of a stronger reset appeals to me, and I am not bothered by a slightly heavier pull. And I like the crisp single action wall that my GPT and '+' connector combination delivers.

Out of pure curiosity (stupidity?), and since I have 2 GPTs in 2 separate G19s... I decided to put an OEM trigger spring from an OEM Gen5 trigger housing into the GPT. It fits.

And in dry firing, it works. Slightly heavier pull and more forceful reset as expected. I won't get out to test live fire for at least a few days.

Someone tell me why this was a really bad idea. Don't hold back. As far as I can see, this shouldn't stress the system. All it will do is increase the forward force applied to the trigger bar, and commensurately increase the upward force applied to the sear holder. Since 1) The range of movement on both parts is limited by the trigger housing, 2) Those 2 parts primarily impinge on each other, and 3) The sear holder pivots on a pin... I think it should be fine.

Before anyone asks - No, this is not a carry gun, and yes I understand that "... if Gaston wanted it this way he'd have built it this way himself! You think you know better than Glock's engineers?!" yadda yadda yadda.

Discuss. I accept my GlockTalk fate!

 

[ActanonVerba70]

or

 

[cciman]

Dunning Kruger effect in full action here.

I would have to fully understand the mechanics in order to give a worthwhile opinion, but because I don't, my opinion is worthless.

Because the gun is now single action, with the installation of the GPT, tread carefully with what you do with it.
Chasing trigger feel in the Glock, often where improving the shooter gives more yield, has always been a rabbit hole in my opinion. To what point is it "good enough" and time to throw more training and practice in?

 

[chrischoi]

The overthinker in me:
The only logical thought is since all the springs kind of work in conjunction with each other it could potentially cause quicker wear if it's causing the other springs constant resistance.
With it being a higher weight spring, maybe the other original springs weren't designed to handle the constant stress of the increased weight? Worst case you might notice something at 2500rds.

YOLO me:
Same distance. Should work. YOLO. Swaggg.

 

[JoeyBones]

The overthinker in me:
The only logical thought is since all the springs kind of work in conjunction with each other it could potentially cause quicker wear if it's causing the other springs constant resistance.
With it being a higher weight spring, maybe the other original springs weren't designed to handle the constant stress of the increased weight? Worst case you might notice something at 2500rds.

YOLO me:
Same distance. Should work. YOLO. Swaggg.

I could see the increased upward trigger bar force on reset potentially gouging the upper clearance of the trigger housing eventually. Or maybe not.

It's just an experiment!

Thanks for the reply.

 

[DirectDrive]

It's hard for some to wrap their heads around, but in a Glock the reset is done by the striker spring.
That is the spring that pulls the trigger bar forward during reset.
The Glock trigger spring is often erroneously called the reset spring. It's attached to the trigger so it must reset it, right ?
No.
It's a trigger pull "assist" spring.
It pulls the wrong way to be a reset spring.

So if you want a more tactile reset, try an increased power striker spring.
Wolff Gunsprings has a 6# Glock Striker (firing pin) spring. (OEM is 5.5#)

ETA
"Slightly heavier pull"
So your experimental spring must be a weaker spring if you're getting a heavier pull weight.

 

[JoeyBones]

It's hard for some to wrap their heads around, but in a Glock the reset is done by the striker spring.
That is the spring that pulls the trigger bar forward during reset.
The Glock trigger spring is often erroneously called the reset spring. It's attached to the trigger so it must reset it, right ?
No.
It's a trigger pull "assist" spring.
It pulls the wrong way to be a reset spring.

So if you want a more tactile reset, try an increased power striker spring.
Wolff Gunsprings has a 6# Glock Striker (firing pin) spring. (OEM is 5.5#)

We're talking about the GPT. The striker spring weight has no effect on reset in this GPT trigger system, as it would in the traditional Glock system.

 

[DirectDrive]

I don't agree with that.
The GPT can be dropped into a Gen5 and it alone does not change the basic function of the Glock.

 

[JoeyBones]

I don't agree with that.
The GPT can be dropped into a Gen5 and it alone does not change the basic function of the Glock.

Respectfully, you are incorrect and I stand by my comment.

The sear is stationary and captures the full weight of the striker spring in the GPT upon slide cycling.

Trigger reset is accomplished by the trigger spring in the trigger housing pushing the trigger bar forward, in the GPT.

 

[cciman]

You could bend the connector away from the TMH so it pushes against the slide with a little more force, which is another way to affect the reset feel without changing any coil springs (the connector is a leaf spring).

 

[Matteo1371]

 

[JoeyBones]

You could bend the connector away from the TMH so it pushes against the slide with a little more force, which is another way to affect the reset feel without changing any coil springs (the connector is a leaf spring).

Yep agreed that bending the connector outboard a bit gives a "clickier" feeling reset sound/feel.

Doesn't increase actual forward reset force though. At least not that I can detect.

Thank you for the reply!

 

[cciman]

Why pursue a stronger reset force? (Stronger reset + lighter trigger = bump trigger)

How do (will) you know if the spring from the OEM gen5 TMH is lighter or heavier than the one you replaced?

Is what you are noting subjectively biased by the effort and the intention of the action, or is it really an effect? You need some blinding.

 

[JoeyBones]

Why pursue a stronger reset force? (Stronger reset + lighter trigger = bump trigger)

How do (will) you know if the spring from the OEM gen5 TMH is lighter or heavier than the one you replaced?

Is what you are noting subjectively biased by the effort and the intention of the action, or is it really an effect? You need some blinding.

My double blind comparator is my other Gen 5 G19 with identical setup (GPT, '+' connector), but with stock GPT trigger spring.

Beyond that, I guess you'll have to take me at my word, or not. I have no reason to misrepresent the situation.

In fact, once I live fire this experimental setup, I'll absolutely report back.... Even if that's egg on my face because something unforeseen happens.

 

[curlysir]

I install a +10% reset trigger spring in all of my P365s. Slightly increases the trigger pull but gives a more positive reset. Sounds like what you are doing may be similar.

 

[JoeyBones]

Tested this with ~115 rounds of live ammo today. Worked as expected.

In fact I replaced the OEM "regular" Gen 5 trigger spring with a ISMI +50% trigger spring.

And I fitted a Ghost 5.0 TCT connector.

Result: Firm take-up, less defined wall than the OEM '+' connector, clean enough break, no overtravel, very short reset with increased forward trigger force on reset.

Again, it's an experiment and not a carry gun. I was just curious what could be done to eliminate GPT overtravel while increasing reset strength and keeping the pull weight up near 5ish lbs.

 

[JoeyBones]

Few hundred more uneventful rounds last weekend through my modified GPT setup. It feels great.

Once some aftermarket company starts making an exact size replacement (but heavier) trigger spring for the GPT, I'll buy a few.

The only thing I don't love about my setup (though it has not been a problem thus far) is that the OD of the heavier spring I am using is ever so slightly greater than the original GPT trigger spring's OD. And if that spring were to jump the collar on the little plastic strut that links up to the trigger bar - I'd imagine my reset would be gone!

 

[Phillyman4455!]

Started running 25% power trigger return springs from ghost and they feel absolutely amazing. Not sure what springs you run but these seem to fit and run fine.

 

[JoeyBones]

Started running 25% power trigger return springs from ghost and they feel absolutely amazing. Not sure what springs you run but these seem to fit and run fine.

I am pretty sure mine are ISMI springs, but would need to track down my receipt or packaging. I do know that the trigger springs I bought were advertised as +50%. I bought them specifically with this project in mind, and therefore wanted the heaviest springs I could find, in order to achieve the firmest GPT reset possible.

 

[Phillyman4455!]

I am pretty sure mine are ISMI springs, but would need to track down my receipt or packaging. I do know that the trigger springs I bought were advertised as +50%. I bought them specifically with this project in mind, and therefore wanted the heaviest springs I could find, in order to achieve the firmest GPT reset possible.

Waiting on my Timney Vex to come in from Johnny Glock. Going to experiment with Timney return spring to see what happens. I’m thinking the Timney design will allow for a very forceful reset but still up in the air how much this will effect the pill weight