SIG 365 UD?

[Matthew Temkin]

A good friend of mine heard that someone who patronized the same gun store had his 365 fire by itself while in his appendix carry holster.
I have some doubts about this but—-has anyone heard something similar?

 

[Jeff White]

Matt, I'm going to move this to autoloaders where it will probably get more responses.

 

[hoardingthemanual]

Ian briefly touched on this. He said it’s a combo of chamber not as fully supported and reloaded ammo.

 

[hoardingthemanual]

Ian forgotten weapons exploding sigs

 

[unclenunzie]

P365 NOT P320 and no, I have never once seen or heard of any references to a P365 having that kind of an issue.

 

[jmr40]

Never heard of an issue with the 365. There are some concerns about the civilian version of the 320. I've not heard of any of the military M17 or M18 versions of the 320 doing this. Those have a manual safety. That may or may not be the reason I've not heard of any issues with them.

The early versions of the 320, both civilian and military were discharging if dropped and if they landed a certain way. Sig addressed that issue and did a recall.

Firing while holstered and apparently no interaction from the user is a different issue that is more recent. At this point I have no opinion either way and am waiting to see conformation about what is actually going on. Lots of ideas floating around on the net. But I've seen no proof of what is going on.

 

[JR24]

I’ve not heard of any story like that, there was the one with a Glock 43 that made the rounds, and considering how many 365s have sold and how quick folks were to jump on the 320 issues, I feel like if it was anywhere near common I’d have heard about it.

Especially since I carry a 365

 

[Alllen Bundy]

I've been searching for P365 malfunctions since May of 2020. I have not heard of a single uncommanded discharge.

HOWEVER, someone had a misfire problem where if he continued to hold the trigger and shook his P365XL it would then fire. Sig replaced a bunch of parts and the problem appears to have been solved.

Sig P365 XL Major Trigger Malfunction. - by Tactical Advisor - Oct 14, 2022


Sig P365 XL Major Trigger Malfunction UPDATE! - by Tactical Advisor - Dec 30, 2022


I have heard about broken firing pins with early P365s.

Sig changed the extractor design, but I never heard about what problem it was trying to solve.

The outer round wire recoil spring on a P365 can coil over itself and jam in as little as 200 rounds, which is why I use an aftermarket flat coil spring.

Return to battery malfunctions can occur during the break-in period due to rough surface finishes that need to be polished.

It can be extremely difficult to retract the slide over a magazine loaded to capacity if the stripper rail finish is not smooth enough.

The trigger is gritty when new. It becomes smoother during break-in and smoother yet if you polish the trigger linkage bar.

Weak primer strikes were caused by the one piece extractor spring retainer. You could sand one side of the retainer or replace it with a 2 -piece retainer to solve the problem.

One person had a broken plastic striker assembly retainer

The original primer drag issue was solved by making the firing pin tip chisel shaped.

It's rare to see extractor claw failures. One of the failures that I did see was caused by steel cased ammo getting stuck in the firing chamber and the extractor claw broke while trying to extract the jammed shell case.

I have heard of broken trigger return springs. But Im not sure how many rounds were fired.

I have seen one broken return spring assembly. But it was a rental that had well over 10,000 rounds fired. I think that it may have been closer to 20,000 rounds fired. The RSA is supposed to be replaced at 2,500 rounds.

The luminous sight inserts have been known to come loose.

If a tang on the sear spring is too short, or if the sear spring is not installed correctly, parts can fall off of the FCU if you remove it from the grip module, as the parts are normally held in place by spring pressure.

 

[Matthew Temkin]

Matt, I'm going to move this to autoloaders where it will probably get more responses.

Thanks.

 

[Yo Mama]

This is why you don't appendix carry.

 

[Alllen Bundy]

This is why you don't appendix carry.

It doesn't matter whose fault a negligent and/or uncommanded discharge is, the end result is that you'll be singing in the boy's choir!

 

[CapnMac]

the end result is that you'll be singing in the boy's choir!

Given the wide range of body shapes and orientations for "appendix" carry, might miss the "jewels" and take on in the interior femoral artery, whic his like to have a person singing in the Hereafter.

Given the stroke length of the 365 trigger, I'll wager there was a holster defect or foreign object in the holster holding the trigger back most of the way.

If this were common with 365s, there'd be a lot more press about it.

As Ian points out in his 320 video, that, if something happens "once in a million" and there are a million of those items out there, you will get an occurrence of that thing. Get to a (statistically) large value, like 1%, that's one in ten thousand, or 100 per million. And that "hundred" sounds like a lot, if only 1% of the million.

 

[Hokkmike]

Never heard an iota about problems like this.

 

[Zendude]

Maybe it had a custom trigger?

 

[Alllen Bundy]

In order for the P365 to fire, the striker safety (sear block) must be pressed inward. Pulling the trigger not only actuates the sear, but it also actuates a lever that presses the striker safety inward just before the sear releases. In order for the P365 to fire WITHOUT pulling the trigger, the striker safety must be stuck in the inward position. Then there still needs to be some force, such as dropping the gun or the sear spring breaking, to cause the sear to move and disengage from the striker.

If the P365 dropped upside down onto the slide hard enough for inertia to move the striker safety inward, the inertia would likely also be pressing the sear into the striker making it very unlikely for the sear to release from the striker.

I did read about someone that had the striker safety jam in the inward position. He used a solvent or penetrating oil to free the striker safety.

Every time I have the slide removed I check the striker safety to make sure that it is moving freely. So far the striker safety has always moved freely. If your P365 ever got wet you should remove the striker, striker safety, and also the extractor, and clean and dry everything ASAP.

Even if the story is true, having had a manual trigger safety engaged would likely have prevented any possible uncommanded or negligent discharge. The manual safety on a Sig P365 prevents the sear from moving far enough to release the striker.

 

[WVRJ]

I see a lot of people carrying IWB appendix and it makes me cringe.I can't imagine putting a pistol down there.I'm not too out of shape as far as how my belly sticks out,but it's hard for me to see what I'm doing when I'm holstering a pistol in that position.To each his own,but I can't think of a worse way to carry a pistol.There's nowhere for a round to go other than somewhere very bad.Maybe I'm too old school,but I'm not going to put the family jewels at risk like that.Any pistol can malfunction and go bang.A modern striker fired pistol without a manual safety can also accidentally discharge.As for the P365 going off on its own,I've not yet heard of or read about a single incident.I have the manual safety on my P365 and I trust it as far as I trust any other firearm.But that trust only goes so far.Being a little less modern than some,I despise to carry IWB at all,but sometimes I have to.I prefer the pistol be at 4 o'clock whether its inside or outside the waistband.I have a couple 320's that don't have a manual safety and when I carry them,they are outside and in very good holsters.One of them is a Wilson Combat version with the Grayguns trigger that pulls at about 4 pounds,and I only carry it in a Kydex holster that is meant for it.In my opinion,the P365XL is a very safe gun and very reliable,but I'm still not trusting it enough to have it pointed at the ole gonads all day long.

 

[Hokkmike]

I see a lot of people carrying IWB appendix and it makes me cringe.I can't imagine putting a pistol down there.I'm not too out of shape as far as how my belly sticks out,but it's hard for me to see what I'm doing when I'm holstering a pistol in that position.To each his own,but I can't think of a worse way to carry a pistol.There's nowhere for a round to go other than somewhere very bad.Maybe I'm too old school,but I'm not going to put the family jewels at risk like that.Any pistol can malfunction and go bang.A modern striker fired pistol without a manual safety can also accidentally discharge.As for the P365 going off on its own,I've not yet heard of or read about a single incident.I have the manual safety on my P365 and I trust it as far as I trust any other firearm.But that trust only goes so far.Being a little less modern than some,I despise to carry IWB at all,but sometimes I have to.I prefer the pistol be at 4 o'clock whether its inside or outside the waistband.I have a couple 320's that don't have a manual safety and when I carry them,they are outside and in very good holsters.One of them is a Wilson Combat version with the Grayguns trigger that pulls at about 4 pounds,and I only carry it in a Kydex holster that is meant for it.In my opinion,the P365XL is a very safe gun and very reliable,but I'm still not trusting it enough to have it pointed at the ole gonads all day long.

Bought an MLT which can be worn IWB or on the outside belt in any position. It is also adjustable for right or left handed shooting. I do not accept the premise that modern striker fired pistols AD on a regular basis absent of operator error. Enjoyed your post - and I am with you on protecting the privates!

 

[Balrog]

In order for the P365 to fire, the striker safety (sear block) must be pressed inward. Pulling the trigger not only actuates the sear, but it also actuates a lever that presses the striker safety inward just before the sear releases. In order for the P365 to fire WITHOUT pulling the trigger, the striker safety must be stuck in the inward position. Then there still needs to be some force, such as dropping the gun or the sear spring breaking, to cause the sear to move and disengage from the striker.

If the P365 dropped upside down onto the slide hard enough for inertia to move the striker safety inward, the inertia would likely also be pressing the sear into the striker making it very unlikely for the sear to release from the striker.

I did read about someone that had the striker safety jam in the inward position. He used a solvent or penetrating oil to free the striker safety.

Every time I have the slide removed I check the striker safety to make sure that it is moving freely. So far the striker safety has always moved freely. If your P365 ever got wet you should remove the striker, striker safety, and also the extractor, and clean and dry everything ASAP.

Even if the story is true, having had a manual trigger safety engaged would likely have prevented any possible uncommanded or negligent discharge. The manual safety on a Sig P365 prevents the sear from moving far enough to release the striker.

I think the manual safety (on models with a manual safety) prevents sear movement, doesn't it? If so that would eliminate the theoretical possibility of an unintentional discharge.

 

[Alllen Bundy]

I think the manual safety (on models with a manual safety) prevents sear movement, doesn't it? If so that would eliminate the theoretical possibility of an unintentional discharge.

If there was somehow enough movement between the slide and the sear, or a defective sear, it could release the striker. But in that very unlikely event, that is what the striker safety/block is for.

 

[Balrog]

If there was somehow enough movement between the slide and the sear, or a defective sear, it could release the striker. But in that very unlikely event, that is what the striker safety/block is for.

I decided to add the safety to mine. That is one of the reasons. The other reason is because it may give me a little more reaction time if gun was ever taken away in an encounter.

 

[sgt127]

This is why you don't appendix carry.

I appendix carry. But, my rule is:

The gun cannot have enough stored energy to fire.

It must have a hammer.

Sig DAK. Sig Da/SA. Revolvers. That’s all I’ll carry.

With a cocked and locked, or, most striker fired guns, everything has to work right for the gun NOT to fire.

With a DA, I’m adding the energy for the gun to fire. Everything has to work right for the gun TO fire.

I have a P365. With a manual safety. Ive tried to carry it appendix.

And, realize there’s a cocked pistol pointed at my Femoral artery. And, I’m done.

I can’t do it.

Realistically, I know that the chances of everything failing and the gun firing are absurdly remote. They are solid guns. Built by a reputable manufacturer. But, I’m not comfortable.