Glock question: what's w/ the trigger safety?
This is a discussion on Glock question: what's w/ the trigger safety? within the Defensive Carry Guns forums, part of the Defensive Carry Discussions category; The trigger safety acts as an inertial safety. It is designed to prevent the trigger bar from moving to the rear if the pistol were ...
January 31st, 2009 11:51 AM
The trigger safety acts as an inertial safety. It is designed to prevent the trigger bar from moving to the rear if the pistol were to impact some surface after a fall.
Note that the firing pin safety is disengaged when the trigger bar moves to the rear, whether it is moved to the rear by action of a finger or inertia. In other words, the FP safety will not prevent the gun from discharging in this case.
Even though it would take a significant fall for the firing mechanism to be activated by inertia of the internal parts (trigger bar / firing pin) it is not wise to remove the trigger safety. That said, I am not aware of any court case regarding a justified self defense shooting where the removal of a safety device caused unnecessary burden on the shooter. I understand the thought process behind this and would like to see some cases where it has happened.
The firing pin spring in the glock design is compressed approximately 58% when the trigger bar is in the forward position. I was curious to know if this amount of compression was enough to detonate a primer. Now, understand, the series of events that would have to occur for the firing pin to be allowed to move forward from this position are very, very, very unlikely (dare I say "not possible") to happen, yet, I still wanted to know.
Without going into all of the details of *how*, I modified some and removed other safeties from the pistol and had it in a condition where I could manually release the firing pin from the trigger bar. I tried 5 primed cases and all 5 primers were detonated on the first attempt. I am satisfied that the amount of compression on the firing pin spring is more than adequate to detonate a primer should the impossible actually happen.
January 31st, 2009 11:51 AM
January 31st, 2009 12:06 PM
Glock trigger safety
I've never owned a glock but the so called trigger safety has always seemed odd to me. The redesigned Ruger SR9 now has what looks like an identical setup. Here's my problem. If it is designed to somehow prevent discharge upon the gun being droppped that's fine. But how could it possibly prevent the gun from being fired if something accidently gets inside the trigger guard and presses to the rear. That's not really a safety and to call it one is nothing more than advertising invention. "Safe action trigger"? Yeh, it goes bang when you pull the trigger whether you meant to or not.
Before anyone says I'm wimpy on safeties my preferrence is no safety of any kind other than internal. My holster is my safety.
January 31st, 2009 12:10 PM
It isn't designed to prevent the gun from discharging if something were to get inside the trigger guard. That isn't the purpose of it at all.
Originally Posted by wvshooter
January 31st, 2009 12:45 PM
Actually, one reason Glock's (and other trigger safeties) are so small is to reduce mass, which reduces the resulting forces acting on it in a mishap. The gun would have to strike the ground or other immovable object at a very high velocity (many many times that of any normal drop, fight or strike would produce) to have the resulting inertia be enough to disengage the trigger safety. Of course, I'm sure the engineers at Glock calculated this to start with and then did a lot of T&E. It would be interesting to hear from Glock to remind us of just how safe this system is.
Originally Posted by Guns and more
I trust my Glock's safety just as much as any others.
One of the most dangerous times (to me) that a trigger type safety can be defeated and have an AD is during reholstering. Let a piece of clothing, or a finger tip get in the trigger guard as it goes into the holster and BANG.
Last edited by jbailey; January 31st, 2009 at 12:46 PM.
"There is no problem that cannot be solved through the proper use of high explosives"
G. Alan Foster
January 31st, 2009 01:36 PM
training ≠ getting used to how a gun feels
sheesh...I've heard of brand loyalty, but glock owners are worse than mac owners.
Randy, jbailey: excellent responses!
Randy: interesting experiment and results.
An inertial safety to compensate for a light trigger makes a lot of sense...I haven't shot a Kahr or a Sig P250, or any other striker fired weapon w/out the inertial trigger safety, and if your theory is correct it would suggest that these weapons have heavier triggers?
Originally Posted by cvhoss
In all honesty: I think it may be something I just have to get used to. The contrast of going from a 226 w/ an SRT trigger to a Glcok 23 was a vast...I wasn't expecting there to be such a huge difference in feel, and just happened to notice the trigger difference the most.
January 31st, 2009 03:28 PM
You CAN file down the trigger safety so it sits flush with the trigger when pulled to the rear, but STILL ENGAGES when not pulled. Or there are a number of aftermarket triggers which when pulled move the trigger safety flush with the face of the trigger so you don't feel a bump.
Originally Posted by batpot
Just a thought.
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