While I agree with the title of the article, some of the contents seem a little over the top in the way they present them. We would need to see the document to know how bad it really is. Many of the failure modes could be user dependent for lack of training (ie finger in trigger guard when holstering). They also don't say which failure modes were fixed and what remained. That said, all you need is one valid failure mode to be dangerous.
"Sig Sauer also stated that the manual safeties on M17 and M18 pistols would resolve some of the issues,"
This would only be the training dependent ones. Mechanically, the safety only blocks the trigger and does nothing to block the striker or sear.
> They also don't say which failure modes were fixed and what remained.
The article links a document[0] which lists them. My reading of this is that it's not listing issues that were found in the P320, but issues that can occur in handguns in general. One of the items is "unsafe hammer decock", which has never been possible with the P320 because it does not have a hammer. It is listed as eliminated.
The remaining medium risks are:
- The user might accidentally pull the trigger by resting their finger on it when they do not intend to fire the gun
- Mishandling the gun might cause a foreign object to pull the trigger
- A drop or vibration might cause the gun to fire
- The user might accidentally pull the trigger a second time due to motion during recoil
- The user may accidentally pull the trigger while clearing a jam
- A broken firing pin could lodge in the firing position, causing the gun to fire when the slide closes
- The user might accidentally pull the trigger during holstering or unholstering
- The sear might fail to retain the striker, causing an uncommanded discharge when chambering a round, or a second uncommanded shot after an intentional shot
- Defective ammunition could rupture and injure the shooter or bystanders
- Recoil can lead to repetitive motion injuries
- Incorrect disassembly and reassembly can lead to a firearm which does not function correctly
Two of these (drop/vibration, failure to retain striker) describe the current uncommanded discharge problem. Five of the issues are different ways someone with insufficient training might mishandle a gun and pull the trigger unintentionally.
"Sig Sauer also stated that the manual safeties on M17 and M18 pistols would resolve some of the issues,"
This would only be the training dependent ones. Mechanically, the safety only blocks the trigger and does nothing to block the striker or sear.