Glock Timney Triggers (warnings)

[The Glockodile]

Oh crap!

Pistol is definitely NOT drop safe!

My living room floor is hardwood with a somewhat thin area rug in the middle. I figured I could safely drop the pistol on the rug without damaging it to really make sure the pistol is drop safe with the new trigger.

I dropped it over a dozen times from different heights and onto different areas of the gun. Any height over two feet, the trigger will release. I simulated dropping it from a table top at four feet and it released whether it landed on the muzzle, the top of the slide, the back of the slide, or on the magazine. It released every time.

I then did the same simulating it tumbling from a holster or waist high drop. Released every time.

This is falling on a padded carpet on hardwood, which is not damaging the pistol in any way. Obviously, in the real world, this pistol falling on concrete, wood, or any solid surface would go off if dropped from nearly any height.

The rubber mallet test tells me it is safe to handle and bump around, but not drop safe at all.

Sad, because the trigger is just so amazingly good.

Imagine, if the pistol was accidentally dropped on the gravel during a quick - draw in one of those time - sensitive competitions...

"Thank God he signed the waiver!"

Is this a situation wherein a round would definitely have fired?

 

[LoonWulf]

I have another question... If the sear does drop the firing pin, how likely is it to bypass the firing pin safety, and/or have enough energy to set off a primer?

I'm curious as I've actually seen the firing pin safety stop an otherwise functional p80 build from operating with the trigger pull.

 

[JohnKSa]

Imagine, if the pistol was accidentally dropped on the gravel during a quick - draw in one of those time - sensitive competitions...

The firing pin safety should prevent it from doing anything other than "decocking" the gun.

If the sear does drop the firing pin, how likely is it to bypass the firing pin safety, and/or have enough energy to set off a primer?

It's very unlikely assuming that the rest of the trigger system (especially the trigger safety) mimics the Glock system sufficiently.

In fact, that's probably not a good way to say it. It's not a matter of probability; if it mimics the Glock system sufficiently, the trigger safety will absolutely prevent the trigger bar from moving sufficiently to deactivate the firing pin safety. The firing pin will remain blocked.

As far as how much energy there would be and if it would be enough to fire the gun (assuming the firing pin safety failed too), that's harder to say. I've seen some testing with the stock striker and striker spring that suggests there might be enough energy stored in the normal trigger forward (partially cocked) position to fire at least some primers some of the time. It's hard to do that kind of testing on the gun in a way that insures that the test is fully representative of what would actually be encountered in a non-contrived testing situation.

I don't have one on hand to check. The OP could check with his cutaway to see if the trigger can be moved sufficiently without the trigger safety being depressed to disable the firing pin safety.

By the way, you guys doing the drop testing, shouldn't overdo it. The firing pin safety is there to act as a failsafe when other things go wrong; it's really not designed to take a bunch of hits.

 

[12Bravo20]

I just shared the video. I do not have a cutaway or own a Timney Glock trigger.

Yes in theory, the safety plunger should stop the firing pin from striking the primer. But we all know how real life is. Now if someone were to use one of the reduced safety plunger springs, I can see the firing pin overpowering the plunger.

And yes I have seen new OEM Glocks fail the drop test too. Those go straight back to Glock when the happens. We have to deal with tolerance stacking between the frame, slide and all internal parts since everything has an allowable +/- tolerance. And once you start adding/using aftermarket parts, the tolerance stacking can and will get worse.

 

[Otto]

Oh crap!

Pistol is definitely NOT drop safe!

Did you do the drop test before you installed the Timney? Is it possible that your modified gun wasn't safe to begin with?

 

[JohnKSa]

I can see the firing pin overpowering the plunger.

The design of the firing pin and plunger is such that the impact of the firing pin shouldn't apply any force to the plunger in a direction that could drive it upwards unless it is almost all the way out of the way of the firing pin already.

The danger of the reduced power firing pin safety springs is that a drop or other impact could jar the firing pin safety out of the way of the firing pin at the same time that a drop or impact releases the sear.

 

[Trey Veston]

Did you do the drop test before you installed the Timney? Is it possible that your modified gun wasn't safe to begin with?

It had all OEM parts before. They were just lightly polished. No difference between it and any other stock Glock that has a 1000 rounds or more in it.

 

[Trey Veston]

Put all of the OEM parts from the G35 match gun back into the G23. Glock OEM (-) connector lightly polished, Gen 3 trigger bar with smooth trigger shoe and light polishing, and polished trigger safety.

Trigger is now reasonably smooth and 4.5 lbs.



Installed the Timney in the G35 with a Glock OEM (-) connector that was polished and it is now at 2.5 lbs. Not quite as perfect as when it was in the G23, but still a good target trigger.

 

[Trey Veston]

Video of me drop testing the pistol. Hard to watch...

 

[RobClarkeRVA]

my 35 on the polymer 80 frame likes the Apex

 

[9mmepiphany]

I hope the OP has had his original question answered, because I think this thread is pretty much done