And just not having hot dog down a hallway tolerances at the slide to frame interface.
The trigger stuff lives in the bottom half of the gun and the bang stuff lives in the top half and only goes bang depending upon the relative position of the trigger stuff. So allowing the top half and the bottom half to move around a ton is generally unwise unless you make accommodations elsewhere in the design so that you still have proper relative position regardless of where in the hallway the hotdog is.
That this giant mess of bad tolerances, sloppy change management, iffy manufacturing outsourcing, and a design which is sensitive to these issues it seems inevitable these kinds of random and hard to reproduce problems would occur. And the more they sold, the worse it would get.
Do that in something which literally can cause death and serious injury if it fails, in an environment where all your competitors designs don’t have these issues and hence users tend towards ‘round in the chamber’ and carrying them in all sorts of messy real world situations? Guaranteed disaster eventually.
Bad sig.
The brand was dead to me many years ago (extractor snapped in the middle of a course - seemed like bad metallurgy, or a bad design), but this is entirely another level of crazy.
Really, any gun where the sear is in the grip and the part it connects to is in the frame could have the same issue.
It may be the case that variance is so wide that there are some P320's which are in that "depressed to the wall" state at rest, but that would require an x-ray or CAT scan of the offending guns, and I don't know if anyone other than Sig has one. There is also a safety on P320's that should be stopping this from happening, but again, it is a part with very wide variation, and on some guns it seems it doesn't work (Sig issued a recall over this already).
I agree with Jared that this problem is a lot trickier and weirder than people give it credit for. The sort of core of the issue is that everything about the gun was done cheaply and they flew a little too close to the sun, but I believe they have no idea what in particular they cheaped out on too much.
Sig's "recall" was a drop-safety issue, where in certain orientations the weight of the trigger could generate enough momentum to allow an unintentional discharge.
It is like saying, if you tape the trigger safety down on the Glock and drop it can go off, therefore it is a design defect.
I'm used to the kind of engineering where the goal is not to kill people I guess...
A trigger safety is meant to ensure that the trigger must be intentionally pulled (as opposed to moving during an impact) for the firing pin to be able to release and hit cartridge primer.
The 1911 famously has a grip safety, which needs to be depressed for the trigger to move. This is to try to ensure someone has to be gripping it with intent to fire, for it to be able to do so. While much safer than other pistols at the time, 100+ years later the design is relatively flawed, and isn’t truly drop safe, as the firing pin can still move.
Sig has good engineering videos where they walk through many of the mechanisms on the M17/18/320.
And even by Sig themselves in other models. It seems to be a problem specific to the P320 / M17.
> The Army position would be to oppose the distribution to the public of the > FMECA document as it potentially reveals critical information about the > handgun (design, reliability, performance, etc.).
I should really know to expect less, but they yet again managed to slide under even my low expectations of sense.
Pistols are the least important weapon in a war. Their capabilities are essential identical, and you can replace every sig with a Glock and the only thing that’ll change is whose pockets the money fills.
The idea of an enemy trying to plan a battle based on the flaws of a particular pistol is exceedingly silly. Even Blackadder has gags more grounded in reality.
No. They are mitigated by a firing pin block that must be lifted by the full travel of the trigger, so that the block is lifted out of the way, for the firing pin to access the primer.
https://www.shootingillustrated.com/media/5nsj1a3l/firpins.j...
Very, very few serious people would argue that anyone carrying a firearm should carry it without a round in the chamber. Yes, "Israeli carry" is a thing, but is almost entirely endorsed simply as a training carry-over from a time when people carried different weapons of widely varying mechanical safety features in a very unique high-threat environment.
If you're carrying a firearm professionally, or in the US "recreationally" for personal protection, carrying without a round in the chamber will be seen by most people as a pretty stupid decision.