[Nitestalker]

From what I can gather, this 17 rd mag is not for the the P365-380; 9 mm only?

Dave Y -

I bought 2 from Sig for my P365 9mm and they work fine, it's stated right at the on line store that they fit 9mm 365.

 

[Rich Jenkins]

From what I can gather, this 17 rd mag is not for the the P365-380; 9 mm only?

Dave Y -

Correct.

 

[twist]

For those in states with a 10 round limit you should check to see if you're prohibited from buying them elsewhere. In Maryland you can't buy/sell/manufacture mags with more than 10 rounds but there's nothing wrong with owning a 12 round mag. You just have to go to a another state to buy them. Like most of the restrictions in Maryland - stupid.

 

[Nitestalker]

Correct.

P365 17RD MAGAZINE (ALL MODELS) It fits all models, or should I say it fits my P365 C 9mm.

 

[Nitestalker]

P365 17RD MAGAZINE (ALL MODELS) It fits all models, or should I say it fits my P365 C 9mm.

Here is the URL to the Sig online store....https://www.sigsauer.com/p365-xmacro-17rd-magazine.html

 

[tango44]

Its obsolete - glad I didn't buy any 15 rounders.

Please explain how this can be obsolete?
It's a mag the works perfect on the platform and now that there is a 17 rounds mag it's just different! nothing obsolete here.
15 rounders where great and stll using them for backup. I don't jump on the wagon that Sig sends every single day...

 

[Rich Jenkins]

P365 17RD MAGAZINE (ALL MODELS) It fits all models, or should I say it fits my P365 C 9mm.

I’m not aware that a .380 shorter case length can be run reliably in a 9mm magazine. The .380 mag tube for the P365-380 is formed for that cartridge, hence Sig using a different part no.

So it would be interesting if you could run a .380 with a Macro mag.

 

[Rich Jenkins]

P365 17RD MAGAZINE (ALL MODELS) It fits all models, or should I say it fits my P365 C 9mm.

Just checked with Sig. That’s a negative on .380.

 

[sigb]

Please explain how this can be obsolete?
It's a mag the works perfect on the platform and now that there is a 17 rounds mag it's just different! nothing obsolete here.
15 rounders where great and stll using them for backup. I don't jump on the wagon that Sig sends every single day...

I cannot think of a reason that one would buy a 15 round mag today given the 17s are out there. That is what I lean by obsolete. I'm sure you made a good decision at the time to have a 15 round (+3) backup mag. Good on you. Its just that now they are obsolete given the 17 rounder.

 

[At The Ready!]

Notwithstanding the use of P365 17RD MAGAZINE (ALL MODELS) by Sig, we have established that "all models" does not include the P365-380; which is a P365 model, is it not?

Dave Y -

 

[Rich Jenkins]

Notwithstanding the use of P365 17RD MAGAZINE (ALL MODELS) by Sig, we have established that "all models" does not include the P365-380; which is a P365 model, is it not?

Dave Y -

I hesitate to ask, but I am genuinely unsure what you are asking.

 

[Kodiak]

I just ordered a P365 that will be at my FFL in a few days. I also ordered a 15 rounder for the range at the same time not realizing there was a 17 available. Oh well, life goes on and I'm not going to lose any sleep over it. I got it for pocket carry, so it will see duty with 10 rounds most of the time anyway.

 

[RDS40]

I’m not aware that a .380 shorter case length can be run reliably in a 9mm magazine. The .380 mag tube for the P365-380 is formed for that cartridge, hence Sig using a different part no.

So it would be interesting if you could run a .380 with a Macro mag.

In the 365 Armorer's course it's spefically stated that there are differneces between the two versions. It is not recoomended that they be used interchangably. One of the reasons that the 365-380 was delayed so long was issues with the magazines and feeding reliably usung the weak hand (and guessing one hand).

They might work. But to the reliability levels of the 380 specfice units...no.

 

[JV]

I cannot think of a reason that one would buy a 15 round mag today given the 17s are out there….

One reason is Colorado. Sig is doing CO customers a disservice by eliminating the 15 round option. Penalties are draconian IMO. What are Colorado gun laws as to magazine capacity?

 

[At The Ready!]

I hesitate to ask, but I am genuinely unsure what you are asking.

A - Fits ALL 365 Models
B - Sig offers a P365-380
C - Since the 17 rd mag does -NOT- fit the P365-380, it is incorrect to say it "Fits ALL 365 Models, isn't it?

That is what I am asking. A minor point, I must admit.

Dave Y -

 

[crosseyedshooter]

A - Fits ALL 365 Models
B - Sig offers a P365-380
C - Since the 17 rd mag does -NOT- fit the P365-380, it is incorrect to say it "Fits ALL 365 Models, isn't it?

That is what I am asking. A minor point, I must admit.

Dave Y -

Oh, it fits…

 

[Sig007]

Update:
Yes it will fit in all P365

 

[crosseyedshooter]

It will fit and work fine with All P365s as long as they have XL grip modules including P380 ..!!

17-rd mags fit all grip modules.

 

[Rich Jenkins]

Ok, wow I am not sure exactly why this isn't clear. The MACRO magazine was designed for 9mm cartridges. It was not designed to and is not compatible with .380 ACP aka 9mm Browning cartridges. Not only is the cartridge overall length shorter, the base and rim diameter are different sizes. The case of a 380 is straight; 9mm uses a tapered case. While you may be able to physically insert a .380 cartridge into a magazine designed for 9mm Parabellum, the cases will not feed properly since a 9mm follower will not reliably present them to the front of the stripper rail at the correct orientation. That is why mag tubes and internals/springs for .380 are for .380 rounds, and 9mm are for 9mm. The whole geometry of the feed cycle is fundamentally different.

As to the wording they use, I am not an English major, but I think frankly it is not beyond belief that Sig considers "all P365 models" to be exactly that. A P365-380 is not a P365, it is it's own unique pistol model, chambered in 380. I would have thought it pretty obvious what they meant, but perhaps...not.

 

[Sig007]

17-rd mags fit all grip modules.

My bad, it will look obnoxiously long for base p365 .
I stand by it will definitely work with p365-380acp