Is there a test for the trigger spring?

[Xavier01]

Is there a way to inspect the trigger spring and figure out how much life you have left before it fails? I have only had 1 part failure in many tens of thousands of rounds fired and it was the trigger spring.

[carbofan21]

they cost $2. swap it out for a new one if you're worried it might break

[skyboss_4evr]

No test that I'm aware of other than having it break. Even if/when that does happen, the GLOCK will continue to fire. BTW, I've got MANY thousands of rounds through my GLOCKS and have yet to break a trigger spring. Oddly enough, in my case, it's the unbreakable stuff that seems to break on me (barrel lug a few months ago and a trigger pin yesterday LOL). But hey, that's another reason why I love GLOCKS, like carbofan mentioned, repairs are cheap and they're easy enough to do on my own.

[fastbolt]

I was told the trigger spring was revised some time a while back and that the hardness was changed in some manner.

Glock armorers have also since received an updated page for their manual regarding the inspection of trigger springs, as well as the reminding them of the importance of making sure the springs are installed in the correct orientation/configuration. (Makes you wonder how many have been found improperly installed by armorers, or the factory, doesn't it, and who installed them incorrectly?)

Basically, armorers are told that during annual inspections it's important make sure the trigger spring is installed in the proper manner, and to look for any conditions that might warrant the need for the spring's replacement, such as:

Trigger spring is broken or missing
Spring coils are bent, crimped or stretched
Spring hooks show stress marks
Trigger spring isn't the current version (Grey finish)

Glock armorers are told that if the trigger spring is going to break, it'll commonly be where the 'top' coil hooks through the trigger bar hole. The hole in the trigger bar for the 'top' spring hook is larger in newer guns and tempered differently. In older guns with older trigger bars the smaller hole may increase the chance of an eventual stress-related spring failure at the point where the spring hooks into the hole.

Not something that causes me sleepless nights. ;)

FWIW, I replace the recoil & slide lock lever springs for preventive maintenance reasons more often than trigger springs. I do inspect them, though.

[Donut Slayer]

I was told the trigger spring was revised some time a while back and that the hardness was changed in some manner.

Glock armorers have also since received an updated page for their manual regarding the inspection of trigger springs, as well as the reminding them of the importance of making sure the springs are installed in the correct orientation/configuration. (Makes you wonder how many have been found improperly installed by armorers, or the factory, doesn't it, and who installed them incorrectly?)

Basically, armorers are told that during annual inspections it's important make sure the trigger spring is installed in the proper manner, and to look for any conditions that might warrant the need for the spring's replacement, such as:

Trigger spring is broken or missing
Spring coils are bent, crimped or stretched
Spring hooks show stress marks
Trigger spring isn't the current version (Grey finish)

Glock armorers are told that if the trigger spring is going to break, it'll commonly be where the 'top' coil hooks through the trigger bar hole. The hole in the trigger bar for the 'top' spring hook is larger in newer guns and tempered differently. In older guns with older trigger bars the smaller hole may increase the chance of an eventual stress-related spring failure at the point where the spring hooks into the hole.

Not something that causes me sleepless nights. ;)

FWIW, I replace the recoil & slide lock lever springs for preventive maintenance reasons more often than trigger springs. I do inspect them, though.Yep, what he said. BTW, if your trigger spring is a shinny one, replace it with the dull finish one. And while having the grip to the left and dust cover pointed right, the trigger spring should look like "S" as its installed.