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Decocker

This is a discussion on Decocker within the SIG Sauer Pistols forums, part of the SIG Sauer Forum category; I have a 2022 9mm. I am assuming that when there is a round chambered, and the pistol has been "decocked" there is no way ...


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Old 09-26-2012, 07:43 AM   #1
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Decocker

I have a 2022 9mm. I am assuming that when there is a round chambered, and the pistol has been "decocked" there is no way for the hammer to engage the firing pin unless the trigger is pulled. My question is, if you dropped the pistol with the hammer striking the ground, would it engage the firing pin? If you pulled the hammer half way back and released it, would it fire etc?
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Old 09-26-2012, 07:51 AM   #2
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No. The firing pin lock and hammer safety intercept notch would both prevent that from happening. All of the internal safeties are only disengaged when the trigger is securely drepressed.
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Old 09-26-2012, 08:03 AM   #3
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Originally Posted by TravestyTrav View Post
No. The firing pin lock and hammer safety intercept notch would both prevent that from happening. All of the internal safeties are only disengaged when the trigger is securely drepressed.
Correct.

I have been looking for a diagram of this mechanism but can't find it. I think it would be awsome to take a look
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Old 09-26-2012, 09:48 AM   #4
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which is EXACTLY why you should NEVER thumb down the hammer after pulling the trigger to lower your hammer (I know, right???... but many do this) as by pulling the trigger, you have defeated the internal safeties and could cause the weapon to fire...

Bill
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Old 09-26-2012, 09:53 AM   #5
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I was told with a round chambered and decocked, you could bang the hammer end on the ground all day and the only thing you'll do is break the pistol. It won't fire.
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Old 09-26-2012, 09:55 AM   #6
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Originally Posted by silversport View Post
which is EXACTLY why you should NEVER thumb down the hammer after pulling the trigger to lower your hammer (I know, right???... but many do this) as by pulling the trigger, you have defeated the internal safeties and could cause the weapon to fire...

Bill
Unfortunately, no safety in the world can prevent stupid from happening.
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Old 09-26-2012, 10:04 AM   #7
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Quote:
Originally Posted by silversport View Post
which is EXACTLY why you should NEVER thumb down the hammer after pulling the trigger to lower your hammer (I know, right???... but many do this) as by pulling the trigger, you have defeated the internal safeties and could cause the weapon to fire...

Bill
Not necessarily. If you let the trigger reset before lowering the hammer the safeties are back in place.

It's just not a good habit.
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Old 09-26-2012, 11:16 AM   #8
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Originally Posted by TravestyTrav View Post
Unfortunately, no safety in the world can prevent stupid from happening.
it doesn't have to be stupidity, just inattention. I had an accidental discharge because i was working with the magazines. the 229 was empty, I finished that one did the 225 mags, then i reached for the 938. apaprently i had not unloaded it. unfortunately being SAO, there is no decocker, I did not realise there was a round chambered, and BANG! round skipped off the desk and lodged in the drywall.. BTW the hornaday critical defense round did not exopand worth a damn.
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Old 09-26-2012, 11:51 AM   #9
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Hmmmm. Inattention has a lot of synonyms that border on stupidity though. And also not a good trait for an owner of deadly tools.
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Old 09-26-2012, 12:19 PM   #10
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Originally Posted by hocuzgetaction View Post
Hmmmm. Inattention has a lot of synonyms that border on stupidity though. And also not a good trait for an owner of deadly tools.
Also not a good trait for a driver of vehicles. Nor a parent of children. Nor a drinker of alcohol. But...it happens.

Inattention is someone who knows better missing a step. Stupidity is someone who doesn't know better.


And if I may: a mistake is a mistake. Telling someone that one method of practice is the ONLY SAFE WAY is taking away their responsibility to think and pay attention.
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Old 09-26-2012, 02:30 PM   #11
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Glass view decocker

Here we go, if you look at the start of the video, the decocker is engaged;
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Old 09-26-2012, 02:36 PM   #12
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Next time I am at the range, I will decock, then pull just the hammer back, let it go before it "catches" and see if it fires. I assume this is the same safty mech on all sigs decockable pistols. Was curious if dropping it on the hammer, or pulling the hammer and releasing after decocked would allow it to fire. Not sure how they come up with these mechanical wonders, but its above my pay grade for sure. Thanks for the responses.
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Old 09-26-2012, 02:41 PM   #13
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Originally Posted by txshurricane View Post
Not necessarily. If you let the trigger reset before lowering the hammer the safeties are back in place.

It's just not a good habit.
If you let the trigger reset, isn't the hammer stopped???
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Old 09-26-2012, 03:12 PM   #14
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Unfortunately, no safety in the world can prevent stupid from happening.
And even more unfortunately, nothing can prevent stupid from suing, either.
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Old 09-26-2012, 03:24 PM   #15
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Originally Posted by silversport View Post
If you let the trigger reset, isn't the hammer stopped???
Depends. If you hold the hammer back and don't let it budge, then the trigger won't even reset.
It sounds more complicated than it is. Simply: once the trigger is reset the gun won't fire if the hammer falls.

It's essentially the same as lowering a 1911 to half-cock. And, incidentally, it's the exact same motion that the decocker presents. The decocker is just a way to release the hammer and reset the trigger at the same time. It's so simple in operation that it's scary. That click at the bottom of the decocker "swipe" is you pulling the trigger; the only difference is that the decocker controls the rate at which each the trigger and the hammer move, and makes sure the trigger lets out first. If the trigger ever got stuck when the decocker was used, it could feasibly result in a discharge. You can Google a couple of examples of accidents that have happened to people who are religious about decockers.

If everyone knew how a Sig decocker actually works they'd probably trust their thumb more.

Last edited by txshurricane; 09-26-2012 at 03:36 PM.
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