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Glock has finally started sending out their new guide rod spring for the 4th generation Glock 19. Here's a picture of the old/original 03 and the new 04:
I ordered one this morning, but they are out of supply. They said it would be two weeks until more arrive.
The Tech asked what kind of ammo I shot and I said WWB. He suggested that I shoot a 124gr 9mm round until the new spring comes in. I asked why that would help... He stated that the .40 cal springs had been used in the 9mm 4th gen Glocks and that they were too strong. I have heard many people say that, this was the first time I have heard a Glock representative mention it.
For the record, I have about 300 rounds through my G19/4... It jammed once in the first 100 rounds and twice in the next 100 rounds. I went to the range yesterday and shot a box of American Eagle 124gr FMJ with no jams at all. I brought a box of Federal 115gr FMJ (from Walmart) to shoot in my G17/4, but decided to try in in my G19/4. My G19/4 shot the whole box of Federal ammunition without a jam either.
My G17 4th generation jammed once with the original guide rod spring and has never jammed again since installing the new 02 guide rod spring. Hopefully the 04 guide rod spring for the G19/4 will do just as good a job.

I ordered one this morning, but they are out of supply. They said it would be two weeks until more arrive.
The Tech asked what kind of ammo I shot and I said WWB. He suggested that I shoot a 124gr 9mm round until the new spring comes in. I asked why that would help... He stated that the .40 cal springs had been used in the 9mm 4th gen Glocks and that they were too strong. I have heard many people say that, this was the first time I have heard a Glock representative mention it.
For the record, I have about 300 rounds through my G19/4... It jammed once in the first 100 rounds and twice in the next 100 rounds. I went to the range yesterday and shot a box of American Eagle 124gr FMJ with no jams at all. I brought a box of Federal 115gr FMJ (from Walmart) to shoot in my G17/4, but decided to try in in my G19/4. My G19/4 shot the whole box of Federal ammunition without a jam either.
My G17 4th generation jammed once with the original guide rod spring and has never jammed again since installing the new 02 guide rod spring. Hopefully the 04 guide rod spring for the G19/4 will do just as good a job.