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The gun goes off if the trigger is pulled. Inertia can “pull” the trigger. That’s how they fire when dropped.

I’ve never seen a competition shooter take off his gun belt, with the loaded gun still in the holster, and drop it on a tile floor or throw it into the bed of their truck.

Comp guns are loaded at the beginning of the stage and unloaded at the end of the stage.

Cop guns are loaded 24/7 and routinely slammed into things. Look at the right side of the grip of a police trade in Glock. The rear sights often end up shifted to the left from banging into door frames and walls

LOL

go to a Cola Warrior run.

Zero fucks given about tossing stuff around or getting it dirty. There are plenty of different pistols being used with no NDs that I have heard of.

My 320 has 3000rnds threw it, maybe more with no problems at all.

My 320 hasn’t had any problems either. But I know that if I drop it in a manner that causes inertia to move the trigger, it will fire.

I still believe the holster is the issue, combined with the light trigger on the 320.....if something get's into the holster (draw string on a coat) it's not going to be hard to create an ND.

Sig has not done a recall. So there’s plenty of 320s out there that will.

Same

You seem to be conflating 2 separate issues, the drop issue was known (and replicated) and there is a fix from Sig for it.  The issue that OP is talking about is not related to the drop issue, outside of the fact that it gives "justification" to cops who have ND's and lawyers to blame the gun.

In this thread we find out who runs their 320, and who does not.

Also in this thread, we find out who owns a 320 and who does not.

The only way 320s fire is if the trigger moves.

There are owners unaware of the problem.

There should be a actual recall. With Sig notifying every owner and providing a shipping box and return shipping label

There isn’t a problem.

There’s plenty of videos demonstrating the problem. Pretending it doesn’t exist is an interesting position.

I was unaware of the problems that certain Glocks had such as the early 19's that would cause an AD when the slide was slingshotted, and I prefer Glocks but not the 19. Had this been with the 17, to which I do prefer, I would have been SOL if I collected the older models and came across one for sale that was never fixed.

So I wouldn't call it ignorance or the fault of Glock that I didn't due my due diligence. The same goes for Sig too, not their fault if I didn't actively try to find out either.

And Glock should have done a recall. Not a “voluntary upgrade”

I sent my 320 in for the voluntary recall. However, even though it's "fixed," I just don't trust it.

Do you really believe that everyone owning one in private hands, would automatically check up on or even send back and be stubborn enough to not do it and spite their nose? That's a bit too trusting of you. I wouldn't.

That right there is a fucked up method of training. They really did that shit?

Sell it to someone who does trust it, and then buy an M&P or a Glock. Problem solved.

It doesn’t trust you either. It’s just waiting for you to drop your guard and BANG!  It’s gonna get you.

Show one of a current gun just going off or drop firing.

Okay my limit with sigs is owning a 365 and two 228's. I am a JMB and walther fan, so I have no real hate or love for sig. ( but cant stand glocks )

I watched the first video posted on page one about how the fcu and striker interface. I also saw the pic posted about the new and old striker block. It looks like the old was a mim part, and the new might have been stamped steel. Two questions

Has there ever been an old striker block that broke?
How likely would a dirty gun, or a gun with a bunch of brass shavings get enough junk to jam the striker block in the lifted/fire position. I know brass shavings can get deep in places it should not, and can do funny things. To include a jammed firing pin go FA on a heavily modded glock.

I do believe most of the problems where the inertia pulling the trigger on the drop tests. I also think most of the ND's are triggers getting pulled when they are not supposed to be, be it a finger , a shirt that got in there etc.

But I also firmly believe that mechanical things break/jam/malfunction and that there could be one 320 that fired it self. That does not condemn the entire gun thou.

One reason I read this thread was I dropped my 365 the other night on to a tile floor while loaded. The holster clip came off my pants when going to the rest room. I unloaded the chambered round and stuck the mag back in the gun until I came home to check everything out on the gun. I was not going to risk a round the chamber on a gun that just hit the floor hard.

You’re way out in left field, here.

The 320 is a Production/CO gun. The overwhelming majority of them are being run with completely stock internals. Speed holsters are expressly illegal in the Divisions a 320 is competitive in.

All of the same factors regarding reliability and safety also apply to a competitive environment but perhaps even more so as the schedule and volume of fire is more significant.

Additionally, I’ve never met a competitive shooter who meticulously cleans his/her guns. We will run thousands of rounds before anything gets cleaned. The only exception to that is that magazines will get disassembled and swabbed out if they land in the dirt.

I live in this world every day.

I heard that 5.56 tumbles in mid-air at a LGS last month.

This.  It is not at all uncommon for our Shadows to go 2500 rounds or more before their monthly bath.  Open division guns excluded.  Those get cleaned overnight at a 2 day.  

Also, never tossed a loaded gun in a holster anywhere, ever.  Match gun or duty gun. Duty belt hung on a hook in locker.

Actually...they have had a couple incidents.  Friend of mine personally worked at least one case.

Post up the findings.

You heard something at the local gun store and you believed it?

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What he’s doing is trolling, and you fell for it.

This, one thing to add:

We find out who knows what they are talking about and who does not.

It is hard to discern if someone is trolling or really that dense since people like to keep doubling down on blatant stupidity.

I don't have the actual report but we talked at length about it and he sent me some test videos.  It was part of a related criminal investigation so can't share a lot.  Gun was in the duty holster and went off without being removed from the holster and shot the trooper in the leg and the perp in the hand.  It was during a physical altercation.

During testing it could not be recreated so basically the results were inconclusive.  

One doesn't have to look far to find all kinds of stories from all over the country of similar things happening especially in secured duty rigs.  Calling them all a coincidence can only go so far.    

I am not a 320 hater. I love the design and some of their newer stuff is downright sexy looking.  The modularity is downright awesome and Glock misses the boat on this kind of shit all the time.  I have seen my coworker do things with his 320 X series in competitions I didn't know was possible with a handgun.  

We are policy bound to Glock 9s so that is where I mainly stay for manual of arms and muscle memory for me off duty or I would probably own a few of the higher end 320 and 365s.

Crucial question: was it a designated duty holster or one like someone posted in this thread, that just happens to fit the gun but leaves a big gap for lanyards/bungee cinches to get in?

This

What equipment was involved?  Did the holster allow access to the trigger?  You stated it was during a hand/hand with a perp, could the perp have gone for the gun and got a digit in the holster?

Because if the circumstances I am not sold that gun “just went off”.

And I want to tack this on: I like Sig, and I have a P320, but it’s not like I’m a slappy. I will rage if rage is due. I’m just not seeing it.

I stated above I have both also.

A manual safety would most likely be attached to the frame, meaning it would lock the trigger.

A lot of the accidental discharge claims sound like the gun was dropped or struck, like the Taurus recall a few years back. A manual safety attached to the frame wouldn't prevent that. A slide mounted safety, depending on exact design, might help.

All this assumes the ADs are, in fact accidental and not well-concealed finger fucking of the gun.

https://www.sigsauer.com/p320-voluntary-upgrade-program

^ Watch that video very, very closely.   They made some very significant changes there, above and beyond what would be needed to stop a "gun fires when dropped at a particular angle on concrete" problem.

My personal theory is this (and I ain't a genius or nothing, so my thoughts on the subject are worth what you paid for em - nothing, I'm just wild-ass guessing here).

First, the general design is such that the firing pin is under enough tension to make the gun go bang if it were released from the sear.

Second, in the pre-updated design, if I understand the guy who explains how it works in the video right, the sear itself functions as the disconnector.     Ie: you pull trigger, sear drops, releases pin, gun goes bang, and the sear gets released from the trigger under spring tension to be back in place to catch the firing pin when the slide comes back from cycling.    As you release the trigger, the 'reset' is the trigger re-engaging with the sear to ready it for the next go-bang.    At least that's how I understood his description - if that's wrong, everything that follows is suspect.

Third, in the pre-updated design, if somehow the sear engagement slips off, and the plunger thingy in the slide doesn't stop the pin from falling, the gun is going bang.

In the updated design, they (among other things):
a) Added added a disconnector
b) Added a secondary catch on the sear part that will catch the pin if it is somehow dropping without the sear being in the down position (ie: if the pin is dropping without the trigger being pulled).   Ohhh, that's a fascinating thing to add, since you just added a disconnector, and you already had (in theory) a glock-ish plunger that has to get pressed before the pin can fall.   Hrmmm.....  why did the engineers do that do you think?  Could be they were just over-engineering, which is very plausible, I would if I was them being asked to fix a "gun goes bang inappropriately" issue.   Could also be more to the story that they can not ever admit publicly for liability reasons.

So put all that info together with our demographic who have (purportedly) suffered discharges while the gun is safely in the holster - 100% of them are cops is all I've heard about anyway.    What you want to bet the following are both true:

1) Some cops don't clean their gun, like, ever.   Over time, this leads to Innerwerkings of yee olde gun getting gummy and stiff from powder fouling/residue.
2) If cop has to fire say 50 rounds a month (or a quarter or whatever) to stay qualified with their weapon, but they aren't gun-guys/gals, and maybe their department makes them pay for their own ammo, so they dutiful bang off exactly 50 rounds and not one more than required.     After round number 50, they still have X rounds in the magazine, and they carry with one in the pipe, so they maybe pop the mag, top it  up, put it back in the gun, and reholster.  IE: they do not have a locked back slide, they do not strip a fresh round from a mag, they just have the round in the pipe that was put there during the firing cycle.

So to me, it seems possible that in very very very rare instances (and these discharges are very very rare, but 1 is too many, 2 or 3 is way too many), the gun is now in a state where the sear was not 100% back to ready when the slide hit home, sear engagement is now less than spec, the innerwerkings of the gun are gummy with fouling, causing either the little thingy that presses on the plunger to be sitting proud, the trigger to not come 100% back to the at-rest position (which presses the plunger), or perhaps the plunger itself to be stuck in a state where it won't stop the pin if it slips off the sear.    Cop drops the gun in that state in their holster and gets on with their day/week/whatever.   At some point, the gun gets jostled just enough, that sub-optimal sear engagement slips, and nothing else is there to stop the gun from going bang when the pin comes forward with force.

Ok, flame away, tell me what kind of idiot i am, IDGAF.   I don't even really think I'm right, but as long as we're all going to sit around talking about this, that's what I got to contribute.

I can't understand how anyone who relies on their gun as a lifeline yet they don't train damn near daily and keep their weapon perfectly clean.

That is utter insanity.  I carry, my EDC is spotless and tested.

SUPPOSEDLY on video.  Nobody has seen the video.  This is in the territory of Schiff’s “I evidence of Russian collusion in this envelope”.

And surveillance video is often very low definition.  It would be VERY hard to see if any clothing or foreign object was lodged in a holster or trigger guard from a low definition video.

If you have not watched either one of these videos, do yourself a favor (for your reputations sake) and watch before making a dumb comment that shows you have no clew what you are talking about.

I thought USPSA Production and CO allowed aftermarket internals and triggers?  I certainly agree with you about reliability and cleaning, but I'm not convinced people in the sport care about safety.  Shadows don't have firing pin blocks and they are among the most popular production guns, and from the sound of it, plenty of people are running extended firing pins and light springs, making the guns less drop safe.  Limited and open is probably the same with customized 2011s and CZs.  A RO was killed by an AD when a competitor accidentally dropped his shadow 2 and the consensus on enos forum was... "Ehhh... A firing pin block would ruin my trigger pull.  Worth it.".

Where's the fun in that?   But seriously, those videos both look to be the upgraded/fixed guns.  Those are not the original design.

Go back and watch that video I posted the link for, it's on sig.com so it's not hearsay, and look at the pre fixed gun design.  The guy even points out that it takes basically no force whatsoever to push the safety bar up which would depress the firing pin safety on the original design, thus leaving nothing to stop the gun from going bang if for whatever reason the pin got disengaged from the sear.  

And again, I'm not saying I'm right, or anything like that, I'm just talking redneck trash based on my observations of the Sig video.

You should change your name to Dunce.