[Rumble]

I suppose this belongs in the gunsmithing forum, but if not, mods please move to the right place.

I recently purchased a used Glock 30, and while stripping the frame (mostly because I wanted to, and also to check out the insides), I noticed that the gun does not have a trigger spring (part #25 in the Glock exploded diagram). There's no indication in the manual that this spring should be absent in the G30, so...

...is this bad? I've already used the gun, and it shot fine--around 150-200 rounds, no issues. It doesn't seem to be a critical part, but I've been wrong before.

[whatbrick]

While it isn't catastrophic, it is bad, else Glock wouldn't have put it there. I'm guessing the trigger-spring helps the firing-pin to reliably engage the trigger-bar since the tension on the trigger-spring helps bring the trigger assembly back completely. You should also notice a different feel to the trigger squeeze once a trigger-spring is installed (it should be a bit lighter).

Trigger-springs are cheap and easy to replace so there's no reason to go without one. I'd suggest taking your pistol to a certified Glock armorer so they can scope it out and see if anything else is wrong, or send it off to Glock themselves so they can take a look. I've heard that they'll replace all the internals of the gun to make it as good as new.

Maybe someone else can give a more definitive answer but the bottom line is to get one put in.

[SDC]

Has your pistol maybe got a "New York" spring in it? These are either olive drab or orange, and give your pistol the feel of either an 8-pd or 12-pd trigger-pull; when they're installed, all you can see is a bit of the coloured plastic from the top of the connector/ejector block. The trigger spring is what gives you your reset capability in the Glock, so there's an easy way to check if you either don't have one or it's installed incorrectly; WITH AN EMPTY PISTOL AND NO MAGAZINE, cycle the slide, and the trigger should move forward to the cocked position. If it DOESN'T move forward, you're missing a spring or it's installed improperly.
The NY springs look like this, when they're out of the pistol, but you'll only be able to see the top leg when they're installed properly:
http://glockmeister.com/catalog/images/Dsc00302.jpg

[Rumble]

Okay--after stripping it again, to take a look, I found that it has a NY1 spring (the olive drab one, in the picture), but what it lacks is the circled item in the picture below:

http://www.randomwebcrap.com/images/missing_spring.jpg

The trigger functions normally: after dryfiring it, if I retract the slide a short distance, the trigger resets and can be dryfired again. I remain puzzled--I looked at the connector to see if I could tell whether it was non-stock, but they all look the same to me. I think I will run it out to my friendly Glock Armorer and have him take a look.

[SDC]

As long as you've got one OR the other, that's all you need; the NY springs replace the little coil spring, and vice-versa (in fact, it's not possible to have both in the same gun at the same time).

[Rumble]

Aha. That's what I needed to know! Thanks--as you can see, I'm new to this Glock thing.

[SDC]

Glad to help. :D If you get a chance, try a few other Glocks with different combinations of connectors and trigger springs, and you might find something you like more than the current setup; I've seen combinations that will take the pull down to around 3 pounds (though I wouldn't want them on a carry gun), and all the way up to 12 pounds.

[triguy]

Rumble,
Near the connector "hook" you will see a minus(-) for 3lbs, no mark for 5lbs and a plus(+) for 8lbs. I've seen some Glocks that were so dirty that the trigger pull inceased by several pounds.

[triguy]

Oops,
Forgot to mention that if you replace the NY spring with a coil it needs to always be in the "S" config. So if you are holding the trigger bar assembly and your trigger mechanism housing is dangling below always make sure the coil spring is looking like an "S".

[Rumble]

Triguy, thanks. The pistol had the stock 5lb connector (no mark). I did replace the NY1 with the stock spring, but didn't know about the "S" bit--I'll doublecheck that it's correct. It hasn't been to the range since I changed it, so I'm glad I saw this first.

I also experimented with the feel of the stock spring and a (-) connector and it was a little too light for my taste as a carry gun--I figure the stock feel is fine. Anyway, I'll pop it open and make sure the spring is properly hooked in.

[triguy]

Rumble,
You will be happy with your purchase. I've carried the Model 17, 22 and as of the past 8+ years a Model 27 all with 8lb. connectors w/standard springs. It's a super gun that I stake my life on but personally own only 1911's(5) and a P32 Kel-Tec loaded with Corbons for the ride to and from work.
I've just attended my 3rd Glock recert. and they are still suggesting replacement of the recoil spring assembly every 5,000rds. and checking the extractor often for chips/cracks. No lube in the firing pin channel & magazine body !
Also, wear hearing protection if you ever get daring enough to change out your firing pin cups for the Navy ones and decide to "play" underwater. It can really muck up an op. Have fun !