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  1. #1
    Join Date
    Jan 2014
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    Default Glock Action Technical Question

    So, having a dialog with a revolver guy about the carry of a semi-auto with a round chambered - discussing the relative safety merits of the different designs. A "fact" that I was hanging my hat on - and committed to following up on - is the following:

    Pretty sure I read this somewhere, that a Glock trigger/striker "pre-cocked" for carry does NOT have enough spring power to go off. It requires the rest of the trigger stroke to compress the spring such that the striker has enough energy to pop a primer.

    Yes, I realize that there still remains the trigger shoe safety, the drop safety etc. inherent in the design as well. (Along with operator responsibility) but I thought that one key in the design was that first step.

    Can anyone confirm that? (Or candidly tell me that my memory is flawed?)

    (Modified pistols, all bets are off, I get that.)

    And no, this is not a debate whether a Glock is safe carried loaded, it is - just clarifying how the design works.

  2. #2
    Join Date
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    The firing pin spring is not compressed enough to fire the gun until the trigger is pulled. And the firing pin is blocked by the firing pin safety anyway (until the trigger is pulled and it disengages that safety) and the firing pin lug is held in place by the cruciform preventing forward travel until the trigger is pulled and the cruciform drops off the shelf. All of that has to happen for one to go "bang". So assuming the firing pin safety and spring are in good working order and the cruciform and firing pin lug have the appropriate amount of engagement it is largely a moot point anyway.
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  3. #3
    Join Date
    Apr 2010
    Location
    Iowa
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    666
    Don't forget that the trigger must move the trigger bar far enough to the rear to disengage the firing pin safety and far enough to move the cruciform off of the drop safety ledge.

    Here is a good animation of the process:

    https://www.everydaynodaysoff.com/20...a-glock-works/
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  4. #4
    Join Date
    Jan 2014
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    1,112
    Quote Originally Posted by Randy Harris View Post
    The firing pin spring is not compressed enough to fire the gun until the trigger is pulled. And the firing pin is blocked by the firing pin safety anyway (until the trigger is pulled and it disengages that safety) and the firing pin lug is held in place by the cruciform preventing forward travel until the trigger is pulled and the cruciform drops off the shelf. All of that has to happen for one to go "bang". So assuming the firing pin safety and spring are in good working order and the cruciform and firing pin lug have the appropriate amount of engagement it is largely a moot point anyway.
    In red is what I was trying to confirm, thanks. I am in agreement that the design has multiple methods to prevent a "design failure" discharge - which I consider significantly different than a "negligent" discharge.

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