Muzzleblast said:

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Here's something I saw this morning on X. Could be swapping parts from various age pistols causing this issue. Makes sense for military and police pistols.

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I don't think that's the issue. Mil and Cops as a general rule aren't swapping parts around. If it was a compatability issue between different grip modules/slides/fcus the civilian side would be seeing way more issues than the mil or leo guns and it seems to be sporadically happening across the board.

There is some sort of tolerance stacking happening in the fcu, either from parts produced to a poor spec, wear, fouling, or a combination of the above. It's not every gun. Its not even the majority of 320s. Heck, so far it's not even reliably reproduceable in the same gun. But there's enough videos out there of guns discharging in holsters without the trigger directly being manipulated its safe to say that while some people may be experiencing NDs due to handling, poor holster choice, whatever....some of these guns are unquestionably going off due to the striker being released without the trigger being pulled...even a millimeter.

Even if 99.95% of 320s are safe and reliable (I have several and they have been for me)......the problem is that until a clear and definitive answer is provided for exactly what is happening and a way to fix it.....you have no real way of accurately determining when and if your gun will suddenly have the same issue...and Sigs response to the issue has been to smear people who have said something negative about the 320, deny there is any issue whatsoever, and....yeah. Not a good look.

For those unaware of Ron Cohen's history (the CEO at Sig), he used to run Kimber, back when they went from a well regarded 1911 manufacturer to making tons of ridiculous aesthetic only variants, cutting cost corners, using MIM parts, and generally being regarded as hit or miss quality. I think Sig under Cohen is primarily interested in cutting costs and maximizing profits, which has culminated in the current 320 debacle.

AggieMPH2005 said:

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I never jumped on the 320 wagon but I know they are very popular and a lot of you guys have them.

What are you all thinking of replacing yours with and is this a good time to remind you all that P30's can be had for a very reasonable price these days?

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I have a P30L. It's a decent gun.

What I've done with my 320s is relegated them to range guns or bag guns. 2 out of my 3 320 fcus currently live full-time in Flux Raider chassis, which if they're ever carried are only carried in a bag with an empty chamber. The third fcu just lives in the safe.

I really hope someone figures out a way to guarantee the safety of the 320 because I really love the Flux Raider, but Flux is already working on one for the Ruger RXM so if I have to switch over I will.

In today's news, they've replicated the same failure mode with Glocks.
Now what? Video on X. Saw it yesterday. On X but may be TikTok or YouTube.

Not sure how they could do that. I'll have to watch that video.

I have had several Glocks and have never noticed the kind of play in the slide that the 320 has in those videos.

It's either on X. Or tiktok. Or youtube.

Muzzleblast said:

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In today's news, they've replicated the same failure mode with Glocks.
Now what? Video on X. Saw it yesterday. On X but may be TikTok or YouTube.

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Just watched it, he defeated the trigger safety on the Glock before manipulating the slide. On the Sig the weapon fires without any prior defeat of the safeties.

If glocks were doing that dangerously an army of owners (and many armies) would have raised a **** show by now.

Here is a You Tube titled " SIG P320 An unfolding Disaster" ….where the host talks about Cohen at Kimber then coming to SIG and using " MIM" (Metal injection Molded) parts at SIG etc. it's long but a decent listen. Comments?

We hosted some PD's and SWAT Teams from Pearland, Liberty, HoustonPD, and some others each year at our ranch for them to utilize our land/facilities and buildings and gun range for their training exercises.
They typically had their armorers traveling with them to service and work on their firearms if they had issues or problems.
They would bring in enclosed trailers with tool chest, and various tools/equipment for working on their firearms.
They would have Plano type tackle boxes full of gun parts…used and new, to service all the weapons they were using.
I watched them swap out parts from different weapons and it was not uncommon for them to put, what I assumed to be, good used spare parts in their guys weapons. At least in those instances I could see how parts could get moved around?

A simple and logical explanation...


Comes down to tolerance stacking.

Any gunsmiths / engineers care to validate, or show fault?

Eliminatus, this seems in line with your earlier posts.

Just posted on X.

WGP followup video. In this he shows the striker block safety gets fully disengaged just from the trigger take up.

This is boiling down to poor tolerances and a terrible design for a striker fired pistol.

As a fan of Sigs I have for years been trying to give them the benefit of the doubt. They have done so many great things it's hard to know where to begin. I've been hoping that this was all BS or just flukish or maybe caused by third party 'upgrades.'

But I'm pretty sure you're right. Bad design. Worse tolerances.

I agree. My first pistol was a P229 I bought in 1997 as my duty weapon. I still have it and it is still a wonderful shooter.

They really **** the bed when Cohen took over at CEO. You can see the corners they cut for the almighty dollar in the 320...sloppy fitment, using subpar MIM parts with horrid finishing in critical areas. I keep hearing rumblings that the whateverthehell it's called military rifle is having issues as well. Not dangerous issues (that I know of anyway), but issues nonetheless. I'm looking forward to the eventual ethics investigation around the selection of those platforms.

ETA: Introducing MIM parts at Kimber was Cohen's call that killed their reputation as well. My old boss loved his Kimber 1911s and he immediately had issues with parts snapping in half or not fitting properly when they went that route.

https://www.airforcetimes.com/news/your-air-force/2025/08/08/air-force-makes-arrest-in-airmans-shooting-death-involving-m18-pistol/

Interesting turn of events.

SIG still has a problem on there hands regardless with the P320

Wow! That is an interesting development.

87Flyfisher said:

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https://www.airforcetimes.com/news/your-air-force/2025/08/08/air-force-makes-arrest-in-airmans-shooting-death-involving-m18-pistol/

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I heard that a few days ago from my buddy who's a sig distributor. He doesn't think there's a problem with the gun and attributes all of the discharges to the gun handler.

Some of these to be sure are issues with things getting into the holster. Backpack strap, purse strap, clothing, etc. A big issue seems to be cops keys, per my buddy.

Now of course, if someone has an ND, they're likely to blame it on the gun.

Half the problem now is separating the operator induced discharges from the manufacturing /QC induced discharges.

Another issue is holsters. Mine has a big gap, because my gunlight is a double cell streamlight. A couple of my coworkers can actually reach into their holsters and fully operate the trigger.

We're changing to single battery (narrower) gunlights and a "tighter" holster.

IMO I would take the half cocked firing pin design, with a lesser trigger. It's easier to learn to shoot a bad trigger than to worry about what might happen mechanically.

would this hazard be present for sig's xten comp 10mm? it's on a P320 frame

Additional viewpoint by someone who has been vocal about this for a while. Summaizes what some of us have been saying...

CT'97 said:

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Trigger wasn't touched, pistol wasn't dropped, it just randomly went off while she was removing her duty belt and the pistol was in the holster on the belt?

I don't understand how this happens. Lots of questions.

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No she was removing the holster from the belt and as she was pulling the belt through the holster loops the gun went off. My initial.thought is something on the belt either caught the trigger or there was something not aligned correctly inside the holster and the jostling of removing it from the belt caught the trigger. Or and this seems just as likely, SIG has not been completely upfront and there are issues they need to address.

Thanks for sharing . Ben Stoeger is a good shooter.

Hung out with the VP of Sig recently. I asked him about it. You would have thought I slapped his momma!!! He very quickly and fiercely defended the 320 and said there are no problems at all. I changed the subject based on the reaction

shalackin said:

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Hung out with the VP of Sig recently. I asked him about it. You would have thought I slapped his momma!!! He very quickly and fiercely defended the 320 and said there are no problems at all. I changed the subject based on the reaction

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Should tell everyone in the world to NEVER purchase a Sig again and get rid of the ones they have.

I will take all of the 226s and 229s. And another 239.

ShouldastayedataTm said:

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CT'97 said:

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Trigger wasn't touched, pistol wasn't dropped, it just randomly went off while she was removing her duty belt and the pistol was in the holster on the belt?

I don't understand how this happens. Lots of questions.

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No she was removing the holster from the belt and as she was pulling the belt through the holster loops the gun went off. My initial.thought is something on the belt either caught the trigger or there was something not aligned correctly inside the holster and the jostling of removing it from the belt caught the trigger. Or and this seems just as likely, SIG has not been completely upfront and there are issues they need to address.

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Now, a gun in a holster shouldn't go off, period, but I seriously question her judgement in pulling the holster off the belt with the gun still in it. Why not take the pistol out of the holster before dicking around with the belt attachments?

I used Safariland's Quick Lock system so I could move one holster (because the department didn't issue holsters for pistols with lights, since while weapon lights were authorized, they were not issued) to different belts, depending on requirements, and I always took the pistol out when removing/reattaching the holster.

I've never owned or shot a 320 (I owned a P220 and used to have a P229), but the description of the 320's trigger-striker combo seems very similar to me to the Apex Forward Set Sear trigger I have in the M&P that I use for 3-gun.

A trigger that I will note I would never consider using in a duty or carry pistol, because it's too dang light and short. (The M&P that I carry has an Apex Duty/Carry trigger)

fixer said:

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Thanks for sharing . Ben Stoeger is a good shooter.

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He is a good shooter and invented logic as well (still a fan of his regardless)