22 Victims of Sig Sauer P320 Across 16 States File New Lawsuits In Federal Court Against The Gunmaker Alleging Its Pistol Is Dangerously Defective

[ikeo1]

Due to the nanny-rule against the word C-O-C-K, the little appears a lot below in my technical explanation:

You can go to your Preferences and disable to profanity filter.

We give options for everyone to get offended.

I know a few competitors with tens of thousands of rounds through each of their 320’s.

I have around 25k rounds between two P320’s no issues.

I think it’s a QA tolerance issue. Can’t prove it just an opinion

 

[RustVendor]

Due to the nanny-rule against the word C-O-C-K, the little appears a lot below in my technical explanation:

If we used the Glock safe action as the "standard" to compare against, the reason the P320 is so sensitive to going off is that the striker is fully ed at rest.

Glock strikers are only partially ed (to the point that if they DID slip off the trigger bar and fly forward), the striker does not have enough stored energy in them to reliably set off a primer.
The vast majority of striker fired guns work much the same way in that the striker is not fully ed until the trigger is pulled.
The act of pulling the trigger also includes finishing pulling the striker back and storing more energy into the striker spring just before it's released.
Because of this, it's not possible to make the trigger pull of most striker fired pistols as good as a hammer fired pistol.
This method of safety has worked well for Glock and the other striker fired derivatives on the market.

The striker being fully ed means that all it takes to fire is for the sear to release the striker.
By eliminating that (Glock) safety step of having to pull the striker back the rest of the way to fully energize the striker spring, the Sig trigger pull is more like a hammer fired pistol such as a 1911.
That better trigger pull is WHY the P320 is so well liked over the longer/heavier (safer) trigger pull of the Glock.

His test here is fairly rudimentary however this guy tests the "half cocked" theory and finds that it still pops primers, I would like to see more tests on it to really say one way or the other but it's interesting nonetheless. The Glock Performance Trigger works essentially by full cocking the striker instead of half cocking, there still haven't been reports of NDs like the Sigs though. Similarly M&Ps are full cocked and have an awesome trigger and don't have NDs like the Sigs. And it's only one model of Sig, it's not the P365 etc.

 

[AR15barrels]

As far as I've read, the M&P, Walther pdp, and springfield XD are also all fully set strikers like the P320. (M&P is just short of fully set, but enough that it would still likely ignite a primer).

What makes these guns less prone to discharge than the 320? The trigger nub?

I have not dug into them, but likely better sear safety design.
Such as an automatic sear block that pulling the trigger defeats during the first part of the pull before the sear starts actually dropping.

 

[ZeroFoxGiven]

Fake news. Sig says there is no design problem or flaws. Haters gonna hate.

I feel I have to specify that I am indeed joking.

 

[BillSmith]

Sig Sauer, Sig Sauer
Oh, have you heard of Sig Sauer
Sig Sauer the firearms maker
They have a model
That's adored so
It'll go off and
Make you so sore

Sung to tune, Lydia the Tattooed Lady

 

[command_liner]

In another part of my life I am trivially involved in this issue. Some of the actual pistols having displayed
"uncommanded discharge" have passed through my hands -- while in evidence bags. My take is there is
a real issue here. Not a massive issue, but one that will cause a big problem eventually.

I carry a Springfield XD Bitone (for those in the know, *that* XD bitone) but would not carry the SIG 320.

 

[vacateCA]

In another part of my life I am trivially involved in this issue. Some of the actual pistols having displayed
"uncommanded discharge" have passed through my hands -- while in evidence bags. My take is there is
a real issue here. Not a massive issue, but one that will cause a big problem eventually.

I carry a Springfield XD Bitone (for those in the know, *that* XD bitone) but would not carry the SIG 320.

I wish these 'evidence bag' 320s were sent to a independent team to be dismantled and examined for answers that we could actually trust and get to the bottom of it.

 

[21SF 2.0]

I wish these 'evidence bag' 320s were sent to a independent team to be dismantled and examined for answers that we could actually trust and get to the bottom of it.

for what? It’s flawed gg sig. the way they handled it, they deserve to go bankrupt.

 

[socalgunowner909]

for what? It’s flawed gg sig. the way they handled it, they deserve to go bankrupt.

Deserve to go bankrupt..... lol ok


10 respected gun companies that have released consumer-grade firearms with reliability or function issues, yet remain well-regarded today (excluding SIG Sauer):

---

1. Smith & Wesson​

• Sigma Series (SW9F, etc.)
  
  • Issue: Awful trigger, jamming, and felt like a cheap Glock copy.
  • Fix: Replaced with the M&P line, which is now top-tier.

---

2. Kimber​

• Solo Carry
  
  • Issue: Very ammo picky, unreliable feeding.
  • Fix: Discontinued, no direct replacement — but 1911s still shine.

---

3. Remington (pre-bankruptcy)​

• R51 (2014 re-release)
  
  • Issue: Major reliability issues, poor QC, failure to feed/extract.
  • Fix: A Gen 2 version helped, but too late to save its reputation.

---

4. Ruger​

• LCP (1st Gen)
  
  • Issue: Harsh recoil, poor sights, finicky reliability.
  • Fix: LCP II and Max dramatically improved performance.

---

5. Taurus​

• PT111 Millennium (pre-G2)
  
  • Issue: Drop-fire risks, poor trigger, general unreliability.
  • Fix: G2C, G3, and GX4 lines rebuilt Taurus’s reputation.

---

6. Kel-Tec​

• PF-9, P-11, Sub-2000 (early runs)
  
  • Issue: Rough triggers, questionable QC, extraction issues.
  • Fix: Better tolerances and fan loyalty to innovation helped them endure.

---

7. Beretta​

• Tomcat (.32 ACP)
  
  • Issue: Cracked frames from hot ammo, slide bite, heavy DA trigger.
  • Fix: Strengthened frame with newer versions like the Inox.
  • Note: Beretta remains one of the oldest, most trusted gunmakers.

---

8. Walther​

• P22 (early models)
  
  • Issue: Slide cracking, poor cycling with bulk ammo.
  • Fix: Design tweaks and better materials over time improved function.
  • Note: Still respected for the PPQ, PDP, and Q5 lines.

---

9. FN Herstal​

• FNS-40 (early models)
  
  • Issue: Occasional trigger reset and light primer strike problems.
  • Fix: Addressed in newer FN 509 platform.
  • Note: FN is still premium-tier, especially in the tactical market.

---

10. CZ (Česká Zbrojovka)​

• CZ 100 (polymer striker-fired pistol)
  
  • Issue: Long, gritty DAO trigger and mediocre accuracy.
  • Fix: Quickly discontinued; CZ focused on what it does best: steel-frame DA/SA pistols.
  • Note: CZ remains a top-tier brand for quality and value.

---

These are great examples of how even strong companies can fumble with certain models — but also how they evolve and adapt.

 

[21SF 2.0]

Deserve to go bankrupt..... lol ok


10 respected gun companies that have released consumer-grade firearms with reliability or function issues, yet remain well-regarded today (excluding SIG Sauer):

---

1. Smith & Wesson​

• Sigma Series (SW9F, etc.)
  • Issue: Awful trigger, jamming, and felt like a cheap Glock copy.
  • Fix: Replaced with the M&P line, which is now top-tier.

---

2. Kimber​

• Solo Carry
  • Issue: Very ammo picky, unreliable feeding.
  • Fix: Discontinued, no direct replacement — but 1911s still shine.

---

3. Remington (pre-bankruptcy)​

• R51 (2014 re-release)
  • Issue: Major reliability issues, poor QC, failure to feed/extract.
  • Fix: A Gen 2 version helped, but too late to save its reputation.

---

4. Ruger​

• LCP (1st Gen)
  • Issue: Harsh recoil, poor sights, finicky reliability.
  • Fix: LCP II and Max dramatically improved performance.

---

5. Taurus​

• PT111 Millennium (pre-G2)
  • Issue: Drop-fire risks, poor trigger, general unreliability.
  • Fix: G2C, G3, and GX4 lines rebuilt Taurus’s reputation.

---

6. Kel-Tec​

• PF-9, P-11, Sub-2000 (early runs)
  • Issue: Rough triggers, questionable QC, extraction issues.
  • Fix: Better tolerances and fan loyalty to innovation helped them endure.

---

7. Beretta​

• Tomcat (.32 ACP)
  • Issue: Cracked frames from hot ammo, slide bite, heavy DA trigger.
  • Fix: Strengthened frame with newer versions like the Inox.
  • Note: Beretta remains one of the oldest, most trusted gunmakers.

---

8. Walther​

• P22 (early models)
  • Issue: Slide cracking, poor cycling with bulk ammo.
  • Fix: Design tweaks and better materials over time improved function.
  • Note: Still respected for the PPQ, PDP, and Q5 lines.

---

9. FN Herstal​

• FNS-40 (early models)
  • Issue: Occasional trigger reset and light primer strike problems.
  • Fix: Addressed in newer FN 509 platform.
  • Note: FN is still premium-tier, especially in the tactical market.

---

10. CZ (Česká Zbrojovka)​

• CZ 100 (polymer striker-fired pistol)
  • Issue: Long, gritty DAO trigger and mediocre accuracy.
  • Fix: Quickly discontinued; CZ focused on what it does best: steel-frame DA/SA pistols.
  • Note: CZ remains a top-tier brand for quality and value.

---

These are great examples of how even strong companies can fumble with certain models — but also how they evolve and adapt.

Did they go on twitter and talk to anyone who didn’t agree with them? Calling them anti gun or engagement hackers?

All of the references you posted, have a “fix” from said manufacturer. Sigs is deny deny deny

 

[socalgunowner909]

SIG Sauer has addressed the P320 drop-fire and unintentional discharge concerns through a series of design changes, safety upgrades, and voluntary programs over the years. Here's a breakdown of what they've done to fix the issue:

---

1.​

• In response to independent tests showing that some P320s could fire when dropped at specific angles, SIG launched a free voluntary upgrade.
• The upgrade involved:
  
  • A lighter trigger.
  • A reduced-mass striker.
  • A disconnect safety (a mechanical fix to prevent firing unless the trigger is pulled).
• The changes significantly reduced the chance of a discharge if the gun was dropped.

---

2.​

• All P320s manufactured after August 2017 include these upgrades from the factory.
• Current models feature:
  
  • Enhanced internal safety mechanisms.
  • Improved trigger components to prevent unintended movement.

---

3.​

• SIG has faced lawsuits from law enforcement and civilians over alleged uncommanded discharges.
• While SIG has defended the design as safe and compliant with standards (e.g., U.S. military testing for the M17 variant), they have continued refining internal tolerances and quality control.
• In some cases, departments have opted for different striker-fired pistols due to concerns, though others continue to use the P320.

---

4.​

• Updated models have passed industry-standard drop tests (e.g., SAAMI, ANSI/SAAMI Z299).
• Independent testing labs and reviewers have found the post-upgrade P320s to be safe under typical conditions.

---

Bottom Line​

• If your P320 was made before August 2017 and hasn’t been upgraded, it’s recommended you take advantage of SIG’s free voluntary upgrade program.
• Newer models (including the M17 and M18 military pistols) have been extensively tested and include all relevant safety features.

 

[21SF 2.0]

SIG Sauer has addressed the P320 drop-fire and unintentional discharge concerns through a series of design changes, safety upgrades, and voluntary programs over the years. Here's a breakdown of what they've done to fix the issue:

---

1.​

• In response to independent tests showing that some P320s could fire when dropped at specific angles, SIG launched a free voluntary upgrade.
• The upgrade involved:
  • A lighter trigger.
  • A reduced-mass striker.
  • A disconnect safety (a mechanical fix to prevent firing unless the trigger is pulled).
• The changes significantly reduced the chance of a discharge if the gun was dropped.

---

2.​

• All P320s manufactured after August 2017 include these upgrades from the factory.
• Current models feature:
  • Enhanced internal safety mechanisms.
  • Improved trigger components to prevent unintended movement.

---

3.​

• SIG has faced lawsuits from law enforcement and civilians over alleged uncommanded discharges.
• While SIG has defended the design as safe and compliant with standards (e.g., U.S. military testing for the M17 variant), they have continued refining internal tolerances and quality control.
• In some cases, departments have opted for different striker-fired pistols due to concerns, though others continue to use the P320.

---

4.​

• Updated models have passed industry-standard drop tests (e.g., SAAMI, ANSI/SAAMI Z299).
• Independent testing labs and reviewers have found the post-upgrade P320s to be safe under typical conditions.

---

Bottom Line​

• If your P320 was made before August 2017 and hasn’t been upgraded, it’s recommended you take advantage of SIG’s free voluntary upgrade program.
• Newer models (including the M17 and M18 military pistols) have been extensively tested and include all relevant safety features.

The drop issues on early production are completely separate issue from the current ND issues. Has nothing to do with dropping the pistol.

 

[socalgunowner909]

The drop issues on early production are completely separate issue from the current ND issues. Has nothing to do with dropping the pistol.

good point....

 

[Deleted member 16735]

none of that list of ten involve the gun going off in a holster on your hip or aimed at your crotch though, they were just mediocre

 

[vacateCA]

for what? It’s flawed gg sig. the way they handled it, they deserve to go bankrupt.

For concrete proof of what exact part / design / manufacturing plant / material caused it.

The details matter.

 

[21SF 2.0]

For concrete proof of what exact part / design / manufacturing plant / material caused it.

The details matter.

if I had those details I would be rich

 

[vacateCA]

if I had those details I would be rich

You and your lawyer at least. Haha

 

[Walmart_AR15]

Remember before the drop fired issue was proven by multiple independent sources, what was Sig's response? Yup, deny, deny.....

Now, we r basically seeing the same SOP, deny until proven otherwise. Except unlike FTE or FTF people can actually get hurt really badly.

 

[axhoaxho]

Does anyone know if all these P320 accidental discharge cases (real world, not test) happened when the gun was inside the holsters?

 

[treelogger]

... what was Sig's response? Yup, deny, deny.....

That alone would be bad enough. The legally and factually correct response would have been "no comment". But to claim "didn't happen" is a lie (in the trade, it's called perjury).

But where it becomes morally completely unsupportable is when Sig started publicly insulting the people reporting such events, for example calling them shills of anti-gun organizations. For that, Sig's management needs to be punished by the scorn of gun buyers.

But also note that this doesn't affect all their pistols. It does not affect the Swiss-made SIG (note the different capitalization), nor the Swiss and German SIG Sauer. Those were different companies with different management. The current problems all arose once the firearms business was sold to a US company, and named Sig Sauer. So if you buy an original Swiss-made P210, it won't be affected.