Why trigger safety on Glock?

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grnzbra

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What kind of accidental discharge is the trigger safety on a Glock supposed to prevent? If it weren't there, what would have to be done to the gun, excluding pulling the trigger, to make it discharge?
 
I don't think it was ever realistically designed to do any other than make people feel more at ease with the Glock. I think it's there just so they can say 'see, it has a safety'.

I like Glocks, but the trigger safety is a joke.
 
It's there to prevent the trigger from moving if there isn't something in the trigger guard. That way when it's properly holstered, or if you're carrying it properly (finger out of the trigger guard), then it shouldn't discharge.
 
Isn't it merely the firing pin safety activation/deactivation lever? Like the Series 80 trigger activated/deactivate firing pin safety on 1911's.
 
I think the blade is really just a "clutch" to keep the trigger from moving rearward unintentionally. Everything is tied to a Glock's trigger. As has been said a million times, a Glock is not going to function/fire unless the trigger is pulled to the rear. Conversely, if it IS pulled toward the rear it WILL fire.

So I think the trigger safety/blade-thingie is a way to keep the trigger pull a light-ish 5.5lbs and still keep all the mechanics tied to the philosophy of "just pull the trigger and the gun will go off" that Glock has designed. Without a "lock"
to depress as a safety feature, they'd probably have to put a 10# trigger on it.

It's been copied enough that I guess the gun manufacturing world thinks it's a sound design.
 
Without the safety in the trigger the gun could fire if dropped. If it falls from high enough, and lands just right the forces could pull the trigger causing the gun to fire. It won't do this unless something has pulled the safety back.

That is the ONLY purpose of this on the Glock as well as similar systems on all the striker fired handguns.

The thingy on the trigger of a Savage Accu-trigger basically does the same thing.
 
Isn't it merely the firing pin safety activation/deactivation lever? Like the Series 80 trigger activated/deactivate firing pin safety on 1911's.
No, it only prevents the trigger from moving rearward. The FP safety is de-activated by a tab on the trigger bar.
 
I've actually heard its cosmetic if put wire around it so it's depressed. The trigger moves back when you rack the slide. Which would be discomforting I guess
 
It was part of the original design as it address the military specification of inclusion of a safety which is manually disengaged before the pistol will fire.

You have to remember that the Glock 17 was originally designed to compete for a military contract. Glock had no prior experience designing handguns, he read the spec, did his research of existing handgun designs, coupled it with his experience in polymer usage and engineered the resulting design
 
I am no expert on Glocks, but I picked up my first one a few days ago. I think it is probably one of the safest pistols out there if the human factor was eliminated. The firing pin rests at half-cock until the trigger is pulled, the firing pin safety must be disengaged by the tab on the trigger bar to fire, and the only way that the tab will disengage the firing pin safety is if the trigger is pulled rearward, and lastly the trigger safety literally has to be pulled into the trigger itself before the trigger can move backwards.
 
The Glock saftey action trigger will not go off unless pulled ALL the way back. The firing pin is not fully cocked even with one in the pipe. When you pull the trigger on a Glock it in turn pulls the firing fin back to the fire postion just before the trigger breaks. So saying that, a Glock will not discharge from being dropped or thrown accross the room or whatever. ... even if the trigger is pulled back slighty the trigger will not break. Glock is one of the most safest pistols out there in reguards to accidently just going off from being dropped or mishandled, unless of course the trigger is pulled all they way back. This is why, IMO I dont recomend lightening the trigger pull on a glock carry gun. To easy to pull trigger back, but at the factory 5 pound or so trigger you are safe in a cocked and locked postion. An in order to pull the trigger ALL the way back the trigger saftey must be disengauged to complete the pistols firing pin travel reward prior to trigger break and fires. To sum it up Glock is essentially a double action pistol, they call it the "safe cation" which is IMO, somewhere between SA and DA trigger. However like I said iis defined as a double action trigger in my book.
To answer simply, it cannot be discharged without the trigger saftey pulled and the striker being pulled back just before trigger break.

Oh yeah another way of saying it and keeping it simple, there are 3 safety mechanisms that keep the striker from hitting the firing pin.

Diagrams and explanations: http://www.glock.com/_safe_action_.htm

1) A trigger safety
2) A drop safety
3) A firing pin safety
Hope this helps... B.B.
 
I don't see the point of the trigger safety. It's effective as a safeguard against dropping the pistol and causing a discharge from impact, but that's it.

I do not believe it to be the SAFEST design. Consider this-A double action/double action only hammer fired pistol. While reholstering or handling, if you want to be sure it isn't going to go off, put your thumb on the back of the hammer and hold it forward. It isn't going to fire unless that hammer comes back first. These guns also typically have a drop-safety on the inside as well, so any pressure on the hammer isn't being applied to the primer unless the trigger is pressed. A glock could be inadvertently fired upon reholstering if clothing gets pinched in the trigger guard and edge of the holster, and you would not have an absolutely sure way of feeling that about to occur.
 
I don't see the point of the trigger safety. It's effective as a safeguard against dropping the pistol and causing a discharge from impact, but that's it.

That is what it is. The point of the trigger safety is that if the trigger guard is empty, the trigger will not pull. Then there are more safeties which prevent anything from happening unless the trigger is pulled (which, the trigger safety prevents from disengaging).
 
A glock could be inadvertently fired upon reholstering if clothing gets pinched in the trigger guard and edge of the holster, and you would not have an absolutely sure way of feeling that about to occur.

You could look at it.
 
It is primarily a drop safety, i.e., it prevents the chambered round from firing if the gun is dropped, thrown, etc. on the floor or other hard surface. The trigger cannot (if everything is in working order) move to the rear unless something pulls it. Secondarily, it helps to ensure that only your finger, fully wrapped around the front, can pull the trigger. It has been found, however, that sometimes foreign objects (e.g., faulty holster lips, sweatshirt drawstrings) can wedge in the trigger guard.
 
I don't see the point of the trigger safety. It's effective as a safeguard against dropping the pistol and causing a discharge from impact, but that's it.

I do not believe it to be the SAFEST design. Consider this-A double action/double action only hammer fired pistol. While reholstering or handling, if you want to be sure it isn't going to go off, put your thumb on the back of the hammer and hold it forward. It isn't going to fire unless that hammer comes back first. These guns also typically have a drop-safety on the inside as well, so any pressure on the hammer isn't being applied to the primer unless the trigger is pressed. A glock could be inadvertently fired upon reholstering if clothing gets pinched in the trigger guard and edge of the holster, and you would not have an absolutely sure way of feeling that about to occur.
Not to mention you only should be holstering when you put your gun on.. and once its in the saftey of a Quality holster how is the trigger going to be touched?
I guess what I am saying is unless your pulling it out every hour or so and reholstering it over and over then you are looking for trouble with ANY pistol. Once it is secure on your person, leave it alone. This will guarantee no snagging no matter the pistol. Its intended spot is in the saftey of a GOOD holster for the duration of the day. If you going to take it out, look at it, play around with it, well just get some pepper spray until you are ready for the responsibility to NOT PLAY with your defense gun..... Dont take me the wrong way at all, just a generlization and not personally directed at anyone... Just a thought I wanted to add....
 
It was part of the original design as it address the military specification of inclusion of a safety which is manually disengaged before the pistol will fire.

You have to remember that the Glock 17 was originally designed to compete for a military contract. Glock had no prior experience designing handguns, he read the spec, did his research of existing handgun designs, coupled it with his experience in polymer usage and engineered the resulting design
Yeah and he made the best damn combat handgun to ever be designed. Gaston Glock is a genius! He has changed the handgun world FOREVER!
 
I believe it also blocks the firing pin. So if for some reason the pin strikes forward (from a drop?), it will hit metal and not the primer since the trigger safety is supposed to push that piece of metal out of the way for the firing pin to hit the primer.
 
Gabs, that is a different safety, which is disengaged as you pull the trigger.

http://us.glock.com/technology

Click on the "Safe Action" option. Two safeties disengage as you pull the trigger back, which are to prevent the firearm from going off randomly or when dropped. The trigger safety prevents you from pulling those triggers, and therefore prevents those safeties from disengaging.
 
So if the trigger safety were removed from a Glock, you would, essentially, have the same situation as a pre Series 80 1911(ie no firing pin block safety). Both may discharged if dropped. (Well, the 1911 woule be safer because it would have to land muzzle down and put the bullet into the ground while the Glock would have to land muzzle up which would put the bullet in the air.)

Does anyone know from what height one would have to drop either gun? What about a Glock with a New York trigger?
 
So if the trigger safety were removed from a Glock, you would, essentially, have the same situation as a pre Series 80 1911(ie no firing pin block safety).
Not quite. The trigger safety has nothing to do with the FPB. It only physically blocks the trigger from moving rearward unless your finger pulls the trigger. The takeup in the pull before you encounter resistance is what disengages the FPB. The trigger still has to be moved through that distance before the gun can fire.
 
It is primarily a drop safety, i.e., it prevents the chambered round from firing if the gun is dropped, thrown, etc. on the floor or other hard surface.

I really don't see how the trigger could gain enough momentum to overcome the 5.5 lb trigger pull. I would imagine that the gun itself would be destroyed from such an impact considering the speed it would have to gain for that small polymer trigger to gain 5.5 lbs of force for the full length of travel on impact.
 
I would imagine that the gun itself would be destroyed from such an impact considering the speed it would have to gain for that small polymer trigger to gain 5.5 lbs of force for the full length of travel

I don't know how fast it would have to go, but I've seen tests done where they dropped a glock out of an airplane and the gun wasn't destroyed. I don't much care for glocks, but they sure can take a beating.
 
What are the odds on shooting yourself by dropping a Glock out of an airplane flying at, say, 5k or 10k feet? Why is that extreme kind of safety needed?
 
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