Glock markets the new Glock performance Trigger or GPT as fitting Gen 5 Glocks only...(and shatters!)
Following is a rundown of my experience with my first and second GPT, then my impression of their performance pus that of other triggers.
I bought the GPT#1 at The Glock Store online (on 5/9/23). I installed it in My Gen4 22 frame with a Gen 4 G17 side and it fit & work fine after I got all the parts and the uppers and lowers together for the first time. I took it to the range and it also worked fine. I dry fired it a lot in drills and it also worked properly.
Then July 24, 23 the GPT's trigger housing shattered! So I put my old trigger assy back in and wrote The Glock Store for and asked for a refund or exchange to sell. They refused because it was out of their 30 day return period.
I sent it to Glock USA in Smyrna, GA warranty replacement. They did a microscopic inspection of it. The guy said there were no molding flaws in it and Glock wouldn't replace it. I asked to talk to the person's supervisor but didn't here from them for like 2 weeks.
Long story short, the assistant manager turned out to have been out of town on business, but finally contacted me and told me Glock would send me a replacement GPT after all because a second inspection showed that there was indeed a molding flaw. He also said that each trigger is inspected for flaws before it is shipped to retailers and they missed the flaw in mine and apologized.
I had lied all along that I installed it in my G45 gen 5 cuz I knew that would void the warranty. So I never told them I was actually using it in my gen 4 G17 when it broke, plus when it broke, I had gotten the slide stuck and racked it hard a couple times and that could have broke it. I told the assistant manager that today and he said it could have broken it but it didn't matter because it had had a mold flaw anyway.
My justification for lying is that capitalism, the only mode of survival I know, sometimes requires deception in order to not get screwed. Also, I sincerely believe that Glock's "GPT is for gen 5 only" is a marketing gimmick (because it fits in my gen 4 and works fine) to sell more gen 5s and GPTs, and not a design issue.
Peculiarities: both my GPT #1 and the Gen 5 stock triggers have a large round hole in the front face of the trigger housing. When GPT #1 broke in half just below the trigger assembly, I could see that 2 walls that broke are literally construction paper thin and the front paper thin face has the big hole in the face, like almost corner to corner, which is where that surface broke.
But neither the replacement GPT, nor my stock gen 4 trigger have that hole in the front face! I pointed that out to the AM and he had no comment.
My plan had been to sell the replacement GPT on Ebay and keep my trusty, simpler, stockier housing stock trigger in my 17, however, the absence of that hole and the AM's admission that there indeed was a mold flaw in GPT #1, gave me confidence to install GPT #2 in my 17 and keep the stock trigger as a backup.
Other than GPT #1 breaking, this is my impression of the GPT: It's the lightest, crispest breaking trigger I've had yet(less than my stock 1 with a minus trigger bar installed) and leagues better than the stock gen 5 trigger which seemed to be the mushiest breaking, gravelliest pull one yet, almost like Glock de-engineered the gen 5 triggers to lure ppl to buy the GPT for their Gen 5s. I accused Glock of that and the Glock ppl I talked to denied it.
I don't like the GPT's (or any, cuz my fricking finger ain't square) square face trigger. I made the mistake of trying to swap the gen 4 trigger and GPT #1's. Both broke, the GPT's uselessly so. So after installing GPT#2 in my 17, I filed, polished and rounded the corners of the trigger blade to suit me.
GPT#1's housing looked just like the stock gen 5 trigger housing, down to the gaping corner-to-corner round hole in the front of the housing, except for an extra tool hole in the side that the GPT has. But the now replacement GPT looks like the gen 4 trigger without the hole in front, but with a tool hole in the left side. I can still see that the GPT #2's 2 walls are still paper thin, presumably to make room inside the housing for the extra trigger parts of the GPT.
Performance difference that I believe I notice between GPT#1 and GPT#2 is that #2 has a more well defined break wall, a stop,at the break which is light yet nice and crisp. So #2 has everything that #1 impressed me with and more.
GPT #2 also has a nice crisp reset with an audible click that I cannot recall at all about GPT#1.
To sum up, these are my takeaways from my user experience with a gen 4 triggers, a gen 5 trigger and the 2 GPTs that I've owned and used in my g4 17, which I' want to emphasize:
#1 It's my experience that Glock stock triggers of the same generation and type are so finely engineered and produced that there's no perceivable difference in the feel and operation between any 2 of them. Furthermore, "working in" Glock triggers with thousands of trigger pulls, yields an almost imperceptible change, which is impressive to me (or so it seems to me ,perhaps because I started out with junk tiggers on Ruger LCPs and Hi-Point c9s that changed tons).
#2 The stock gen 5 triggers and the GPTs have a lighter break than even my gen 4 stock trigger group w/a Glock "minus" bar installed.
#3 Though they don't acknowledge it, during the brief history of the GPT, there seems to have been an evolution resulting in a slightly better performing trigger (between the GPT#1 with the hole in front and GPT #2 without the hole) in terms of smoothness of take-up, the stop, the reset and a stronger housing than it started out with. The break is about the same.
#4 in fact with GPT #2 installed, I can just pull the trigger through and fire without the tiniest impact on my point of aim. For reference, i couldn't do that with the stock trigger and minus bar, or with the stock bar (even worse deflection).
#5 which means that while I didn't recommend the GPT based on my experience with #1 GPT, I now recommend it for any Glock model/generation that it fits in and works with. Just make sure the GPT you receive doesn't have a hole in the front face. If it does, return it and demand one that doesn't have the hole in the front.
#6 based on an abysmal experience with a $130 Apex trigger for Glock (reviewed in another post) and my overall great experience with Glocks and Glock OEM triggers, I don't recommend ANY aftermarket parts on any Glock, including expensive ones like Zev barrels and slides, nor of course Polymer 80 clones that cost as much as the genuine article!
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