Mag Guts Sig 365

[JohnR]

+2, for an already amazing capacity little gun. I’m impressed!

https://magguts.com/product-category/sig-sauer/p365/

[DavidR]

It looks really good but it’s not a great time to introduce a product that needs lots of ammo for testing.

[340pd]

They probably rushed this out to beat any magazine capacity bans in the future. I carry my P365's with ten rounds total figuring if I needed more than than ten, I should have brought a friend.

[Armybrat]

Too bad Justin Moon hasn’t made a move in the same direction yet.

[guido4198]

IF I owned a Sig P365 I would definitely go for the Mag Guts kits based upon my positive experience putting them in my CM9 mags.
I've survived combat operations on 3 continents and never felt like I had too much ammo.

[340pd]

It isn't a matter of how much ammo you have, it will become a question of how much ammo you will be allowed to possess.
As for increased capacity, Sig already makes mags that will hold 15 rounds. People forget the fact mags fail and you are far better off carrying an extra mag as opposed to one pushed to the max. I know very few that completely fill a Pmag with 30 rounds.
Clint Smith gives an firsthand earfull on that topic.

[dao]

IF I owned a Sig P365 I would definitely go for the Mag Guts kits based upon my positive experience putting them in my CM9 mags.
I've survived combat operations on 3 continents and never felt like I had too much ammo.

Ya know, I was going to ask you why you would feel the need to increase capacity beyond a factory 15rd mag. Until I read your second sentence. Then it all made sense. Congrats on making it back alive.

[Bawanna]

It isn't a matter of how much ammo you have, it will become a question of how much ammo you will be allowed to possess.
As for increased capacity, Sig already makes mags that will hold 15 rounds. People forget the fact mags fail and you are far better off carrying an extra mag as opposed to one pushed to the max. I know very few that completely fill a Pmag with 30 rounds.
Clint Smith gives an firsthand earfull on that topic.

^^^^This right here.

[SlowBurn]

It isn't a matter of how much ammo you have, it will become a question of how much ammo you will be allowed to possess.
As for increased capacity, Sig already makes mags that will hold 15 rounds. People forget the fact mags fail and you are far better off carrying an extra mag as opposed to one pushed to the max. I know very few that completely fill a Pmag with 30 rounds.
Clint Smith gives an firsthand earfull on that topic.

In my (more limited) experience, mags with Magguts kits are as (or MORE) reliable than with the original guts. The advantage of the Magguts kits over extended mags is your weapon stays the same size. Makes a difference to pocket carriers. The point of pocket carry guns like this is to be armed when carrying larger weapons, extra mags etc is not practical or convenient.

[dao]

I wish they'd produce kits for the .45

[Bawanna]

Don't need many rounds with a 45. Just sayin.

[dao]

:yo:

[jeepster09]

Don't need many rounds with a 45. Just sayin.

Exactly...when ya shoot 'em with rounds the size of a BASKETBALL they go down! :w00t:

[berettabone]

I have heard(ahem) that with the 9mm ammo they design and produce, it's pretty much equal to big bore these days.:rolleyes: Must be why some need to carry 17+1 in the gun and more mags on the side.:) It's called 9mm confidence......................

[gb6491]

I received a kit for the 10+2 today. Installation went smoothly: remove OEM floor plate, spring and follower, then install MG follower, spring and floorplate. Floor plate locking tab is attached to the spring on both the OEM and MG spring. First round in took a little jiggling about to get it started; the rest went in easily. All fed and chambered by hand with no issue. Second loading was easier than the first. Hope to run some live tomorrow.
https://i.postimg.cc/Px8PJWVJ/12.jpg (https://postimages.org/)
Regards,
Greg

[guido4198]

In my (more limited) experience, mags with Magguts kits are as (or MORE) reliable than with the original guts. The advantage of the Magguts kits over extended mags is your weapon stays the same size. Makes a difference to pocket carriers. The point of pocket carry guns like this is to be armed when carrying larger weapons, extra mags etc is not practical or convenient. (emphasis mine)
EXACTLY. I don't want the butt of my CM9 to have to be any longer than it is with the factory 6 rd. mag.
Going to the Kahr for EDC has been a "step-up" from the S&W 642 purely for the extra rounds.
When I have been in places where the potential for a gunfight was much higher than it is where I am now...my go-to for EDC is my Browning HiPower with 2 spare mags. Hope it doesn't come to that here.

[dustnchips]

If I felt that I had to carry 30-50 rounds to be safe I would have an AR instead of a pistol. A 45 with 20-30 rounds would not do either. I'm not a cop or soldier so I really don't feel the need for that much ammo. Bang, bang, and run like H@ll. My everyday life is just not that dangerous.

[Covert Kahr]

I bought the +2 for my 10 and 12 round mags. I’ve got 15 round mags and I’d buy these kits for them as well. A 10+2 and a 15+2 (or 3) would be 30 rounds with one in the chamber in an almost PM9 sized gun. I’m going to install them today and see how they feed.

I don’t feel like I need 30 to be safe, I just know that having a few more is better than a few less. 30 is what is possible with the one in the gun and a backup.

[King Rat]

In my (more limited) experience, mags with Magguts kits are as (or MORE) reliable than with the original guts. The advantage of the Magguts kits over extended mags is your weapon stays the same size. Makes a difference to pocket carriers. The point of pocket carry guns like this is to be armed when carrying larger weapons, extra mags etc is not practical or convenient.

My experience they are not as reliable as the OEM in 9mm, and I like the non plastic follower for the magazines that Kahr and Lakeline now sell. The only failures I have had with two CM9's were from Magguts. I ended up getting rid of them and replaced them with OEM. I also like the extension form Gallaway that adds one more rather than magguts which I have had failures with in 9mm. And I like the the way the Extension feels in the hand. I do have magguts in the 380 and have had no failures, I also like the ability to buy "Extra Power Springs" from Wolf and change them out when I feel they are needed.

[berettabone]

If I felt that I had to carry 30-50 rounds to be safe I would have an AR instead of a pistol. A 45 with 20-30 rounds would not do either. I'm not a cop or soldier so I really don't feel the need for that much ammo. Bang, bang, and run like H@ll. My everyday life is just not that dangerous. Exactly............. I carry 5 rds. of .357 or 10 rds. of .40. Any more is just too much extra weight to lug around. I'd be much more worried about getting to safety than having a shootout just because I have extra rounds. A rifle IS a good idea if you really feel the need for all of that ammo.

[Covert Kahr]

Exactly............. I carry 5 rds. of .357 or 10 rds. of .40. Any more is just too much extra weight to lug around. I'd be much more worried about getting to safety than having a shootout just because I have extra rounds. A rifle IS a good idea if you really feel the need for all of that ammo.

Isn’t it wonderful to have a variety of options.

[Covert Kahr]

I installed them in a 10 and a 12. They feed just fine. Only hiccup was loading them. The spring would stick a little at round 4. After that it was like butter.

Now I’ve got a 12+1 with 14 in reserve in a package slightly bigger than a PM9. I’d still like a little 380 as a pocket gun, but no complaints so far with my 365. I added a metal frame for the improved feel.

https://uploads.tapatalk-cdn.com/20210124/c3eb38e49970c2b991aff711432a5d80.jpg

[SlowBurn]

My experience they are not as reliable as the OEM in 9mm, ...

Good info. I’ve only used them in 380s. If they’re not 100% in 9s, then it’s certainly a no go.

[DavidR]

Good info. I’ve only used them in 380s. If they’re not 100% in 9s, then it’s certainly a no go.

They’ve been 100% in my Shield, CM9 and P9 although I haven’t put a metric ton of rounds through any of them.

[Armybrat]

While I think my CW9 is entirely adequate with 7+1 (don’t carry an extra mag) I would be very happy if Justin Moon would double stack it to a 10+1 without changing the length of the grip frame with a flush magazine.
Or better yet, do it with the new PM9 Covert.
I’d be all over that like a politician on a porked-up bill.

[340pd]

While I think my CW9 is entirely adequate with 7+1 (don’t carry an extra mag) I would be very happy if Justin Moon would double stack it to a 10+1 without changing the length of the grip frame with a flush magazine.
Or better yet, do it with the new PM9 Covert.
I’d be all over that like a politician on a porked-up bill.

1. A spare mag will help balance your load, even a little is good.
2. Go to 2:50 in this video. It changed my way of thinking.
https://www.youtube.com/watch?v=8mCAd7giD2o

[Covert Kahr]

Carry 12+1 in the gun and 14 in the spare. Best of both worlds. Shoot good and a reasonable backup if first mag fails.

[getsome]

1. A spare mag will help balance your load, even a little is good.
2. Go to 2:50 in this video. It changed my way of thinking.
https://www.youtube.com/watch?v=8mCAd7giD2o

That’s a great video, Clint Smith is a really funny guy but his real world knowledge is dead on.......I thought about a Mag Guts kit for my PM9 but decided against it because A. The gun runs perfectly with all 3 stock six round mags I have.....B. I carry a spare 6 round in my off side pocket along with a Benchmade folder and a small Streamlight flashlight so I have 13 rounds if necessary which should be more than enough to get me out of a bad situation and C. If God forbid I was ever involved in a self defense shooting and then had to explain to a jury why I felt the need to modify my pistol to hold more bullets so as to be more deadly it would likely go bad for me.......If Justin ever makes a factory PM9 that holds 10 rounds then I’m first in line for one but for now my reliable 7 round pistol and a spare mag is fine....

[340pd]

Agreed and it sounds like you are well prepared.
I am not trying to tell people what to do, I was just pointing out what people who have been there and done that have experienced.

Is it odd that much of the time I have two flashlights. Don't laugh, one is this small,
http:// (http://<a href=&quot;https://postimg.cc/Q9bwBP7N&quot; target=&quot;_blank&quot;>https://i.postimg.cc/WzLvycbZ/Maratac_Peanut.jpg</a>)https://i.postimg.cc/WzLvycbZ/Maratac_Peanut.jpg (https://postimg.cc/Q9bwBP7N)

[340pd]

dup

[Covert Kahr]

That’s a great video, Clint Smith is a really funny guy but his real world knowledge is dead on.......I thought about a Mag Guts kit for my PM9 but decided against it because A. The gun runs perfectly with all 3 stock six round mags I have.....B. I carry a spare 6 round in my off side pocket along with a Benchmade folder and a small Streamlight flashlight so I have 13 rounds if necessary which should be more than enough to get me out of a bad situation and C. If God forbid I was ever involved in a self defense shooting and then had to explain to a jury why I felt the need to modify my pistol to hold more bullets so as to be more deadly it would likely go bad for me.......If Justin ever makes a factory PM9 that holds 10 rounds then I’m first in line for one but for now my reliable 7 round pistol and a spare mag is fine....

Good luck explaining why you had a spare mag. If you had time to reload then you had time to get away.

Don’t shoot unless your life is in danger.

[getsome]

I believe we agree that the best gun fight is the one you’re not involved in...When I’m in public I’m always armed but I will change direction or cross the street if something doesn’t look right to stay safe to avoid trouble at all costs.....Carrying a handgun for self defense is a huge responsibility not to be taken lightly.....If you follow Massad Ayoob’s advise you should never carry a modified handgun in any way for self defense.....If you dislike the trigger pull or magazine capacity or whatever go buy something else that works for you because it’s best to carry a factory stock weapon rather than something you have modified because it will come back to bite you in the ars if you ever have to use it and are arrested for defending yourself......Massad Ayoob is retired Police Detective and expert witness in legal carry citizen involved shootings and knows a thing or two about what can happen in a court of law......His advise is to carry a stock, unmodified CCW pistol and to find out what kind of ammo the local Police carry and use the same so that if you ever have to shoot a thug trying to kill you then the Law Firm of Washington & Washington can’t use it against you in front of a jury full of Karen’s to say that you used an extremely dangerous modified weapon or extra deadly ammo in order to take everything you have for the poor grieving “family” of the fine young college bound, Sunday School loving little angel you were forced to shoot so he couldn’t kill you or your family....

[Covert Kahr]

I agree that the best fight is the one that you aren’t in. I installed an RDS on my gun which are common now on self defense pistols. The gun comes stock with 10 round mags. 12 and 15 round mags are factory available. I’m limiting those changes to the ones that are available on similar models from the factory.

[gb6491]

Yesterday, I ran fifty rounds of steel case, Winchester 115gr. through my P365 without issue. The little glitch I had loading the first round (the first time) has completely disappeared. While I'm not calling 50 rounds conclusive, I'm pleased with the Magguts kit in this particular magazine.
https://i.postimg.cc/9F7NCPdQ/365865.jpg (https://postimages.org/)
Regards,
Greg

[Bawanna]

I reconned and held a 365 for a friend a few weeks back, he ended up buying it. First one I ever held. I was favorably impressed. Had great sights and the trigger was sweet out of the box.

[dao]

Can you get a three finger hold on them with the 10rd mags guys? If so, what is your hand size?

Greg did you put the flat trigger in yours, or is it the XL?

[gb6491]

Can you get a three finger hold on them with the 10rd mags guys? If so, what is your hand size?

Greg did you put the flat trigger in yours, or is it the XL?
I'd say I have medium to medium small hands. I'm flirting with pinky under when using the OEM flat base plate. I probably end up that way when shooting it, but that doesn't bother me. In fact I kind of like after quite a bit of time with a baby Glock.
I'm full three fingers with the Magguts kit, but just barely.

I put that trigger in.

FWIW, I did just try a loaded 10 round magazine with a flat base plate to verify the grip thing. Surprisingly, I noticed that the fully loaded (12) Magguts magazine is considerably easier to seat than the flat base magazine (10).

Regards,
Greg

[Covert Kahr]

Can you get a three finger hold on them with the 10rd mags guys? If so, what is your hand size?

Greg did you put the flat trigger in yours, or is it the XL?

I get a two finger hold on mine with 10 round magazines. I’m XL to XXL glove size. I find it gives a similar amount of room as the PM9 grip. Better beaver tail IMO.

I tried the XL grip but found the mag well flare digs into my pinky. I don’t have the same problem with the 12 round extended mags.

Flat trigger is an easy swap. I also swapped for an aluminum grip frame instead of stippling the standard frame. It requires an extended mag release.

I’m looking into buying another one, but I’ll probably just flat trigger it and call it good. I just want an extra.

[DavidR]

I have small hands and I can’t get my pinky comfortably on the 10 round mag with flat base.

That’s from back when I had guns. In case anybody is listening in:

I NO LONGER OWN ANY OF THEM EVIL GUNS THAT ARE RESPONSIBLE FOR ALL THE ILLS OF OUR SOCIETY. I HAVE BEEN SUCCESSFULLY DEPROGRAMMED.

https://i.imgur.com/Bnqv6Sg.jpg

[dao]

Thanks for the info guys, I have been contemplating a P365 for awhile now, and also trying to determine whether I'd like the smaller one with an extended 12rd mag or the XL with the flush fit 12rd mag. I think that the smaller one would work best for me with the extended mag, and would lend itself better to pocket carry, especially with the factory flat plate whereas the XL would probably not work at all in my pockets. That being said I've come to reappreciate the Kahrs and I'm also trying to decide if another of those would make me happier than the Sig. And then there's the P239 in .40. Decision, decisions, decisions.

[jeepster09]

I am happy with my 365 the way it is, if I wanted more capacity I would carry my 229 with 18 rounds. Little guns are good sometimes....:behindsofa:

[Covert Kahr]

I prefer the extended mag over the longer grip. Nice thing is you can swap a long grip for a short grip and the other way around as well if you want.

The fire control unit is common between both models and is the only serialized part.

Remove the slide, pop out a pin, and out it comes.

[340pd]

The P365 changed the carry world in so many ways. Since I bought one a few years ago, I have sold a half dozen smallish guns that were dying of loneliness in the back of my safe and replaced them with a variety of firearms that are now getting a lot more use.

[Canine Dave]

The P365 changed the carry world in so many ways. Since I bought one a few years ago, I have sold a half dozen smallish guns that were dying of loneliness in the back of my safe and replaced them with a variety of firearms that are now getting a lot more use.

I hope you kept your 340PD.

[Canine Dave]

Yesterday, I ran fifty rounds of steel case, Winchester 115gr. through my P365 without issue. The little glitch I had loading the first round (the first time) has completely disappeared. While I'm not calling 50 rounds conclusive, I'm pleased with the Magguts kit in this particular magazine.
https://i.postimg.cc/9F7NCPdQ/365865.jpg (https://postimages.org/)
Regards,
Greg

Bill Ruger was against Hi-Cap magazines.

[Canine Dave]

After taking all this in, I think it's great that us good guys can easily and cheaply (and reliably except for feeding that darned first round) increase our self defense handgun's magazine capacity. Bad news is so can the bad guys. Not sure where this round count escalation will end?

[King Rat]

Bill Ruger was against Hi-Cap magazines.

Just to be on the safe side, I would advise to get a lot more than 50 rds fired through them with the mag guts before I would EDC. I had much more than that with my CM9's before they just plain failed. I got rid of them and just went with the OEM. It might be even more problematic with the 365 which is obviously a new design. Sometimes it is not wise to force more on a product than what is made for the gun. Sig and Hellcat already have more rounds than similar size guns. Some folks say you need more and once they get that, they want even more. The usually is a limit before things start to fail. Personally If I were to get the 365, I might try the magguts for range work only and carry the OEM. JMO Congrats and I wish you luck.

[gb6491]

I did mention 50 rounds was not conclusive and I do intend to get in some more trigger time, but I think this will work out well.

I tried Magguts when they were first introduced for the Ruger LCP. I had a problem with those and quit using them. The issue was that the little tray that the top spring compresses into just rested on the lower spring. It could/did dislodge and the upper spring would collapse into the lower spring.

When I saw they were using a single flat wire spring for their S&W Shield kit, I gave them another try. Those have worked flawlessly through many rounds.

When the 9mm Kahr kit came out, I saw it used two different springs, but now the little tray is mechanically attached to the lower spring, plus the upper spring is mechanically connected to the tray. You end up with a single spring assembly instead of three separate components like LCP kit had. I've not had any issues with the Kahr kit in my PM9 or CW9. It also works in my P40 Covert, but does not always lock the slide back.

The P365 kit is similar to the Shield kit in that it uses a single flat wire spring. Aside from the increase in capacity, I'm appreciating that it doesn't take as much force to seat the Magguts equipped mag as it does an OEM 10 round mag.

I'm not advocating for or against anyone using these kits. I'm just passing along what I've experienced with them.

FWIW, I see they have changed the LCP kit to mimic the Kahr kits. I may give them another try.

Regards,
Greg

[Bawanna]

Also I can never in my wildest nightmare picture Greg using steel cased ammo for defensive carry. Or now days perhaps it should read offensive carry.
Myself no matter how bad things get I'll find brass. Actually prepping a ton of 45 as we speak.

[Covert Kahr]

I did mention 50 rounds was not conclusive and I do intend to get in some more trigger time, but I think this will work out well.

I tried Magguts when they were first introduced for the Ruger LCP. I had a problem with those and quit using them. The issue was that the little tray that the top spring compresses into just rested on the lower spring. It could/did dislodge and the upper spring would collapse into the lower spring.

When I saw they were using a single flat wire spring for their S&W Shield kit, I gave them another try. Those have worked flawlessly through many rounds.

When the 9mm Kahr kit came out, I saw it used two different springs, but now the little tray is mechanically attached to the lower spring, plus the upper spring is mechanically connected to the tray. You end up with a single spring assembly instead of three separate components like LCP kit had. I've not had any issues with the Kahr kit in my PM9 or CW9. It also works in my P40 Covert, but does not always lock the slide back.

The P365 kit is similar to the Shield kit in that it uses a single flat wire spring. Aside from the increase in capacity, I'm appreciating that it doesn't take as much force to seat the Magguts equipped mag as it does an OEM 10 round mag.

I'm not advocating for or against anyone using these kits. I'm just passing along what I've experienced with them.

FWIW, I see they have changed the LCP kit to mimic the Kahr kits. I may give them another try.

Regards,
Greg

The single spring and follower makes it a more robust design over a multi spring option with unattached pieces.

[dao]

Also I can never in my wildest nightmare picture Greg using steel cased ammo for defensive carry. Or now days perhaps it should read offensive carry.
Myself no matter how bad things get I'll find brass. Actually prepping a ton of 45 as we speak.


I've never had the patience, or self discipline to reload. So there are things I don't know. Is nickel plated brass to be avoided also?

[Bawanna]

I don't avoid nickel plated. I work it separately and generally use it for special loads.

I've been tumbling and depriming 45 brass a lot the last few days, I keep finding more. I don't plan to load it till I verify some loads and even then not a lot till I see whats happening. I have lots of bullets, but not a lot of powder, quite a few primers but never as much as I'd like. I been going through rearranging and found some power and a lot of bullets I forgot I even had. Sometimes digging through your stuff has benefits.

I remember after moving 30 years ago, after finally doing an addition and having a man cave it was like Christmas, all the treasures I found.

[dao]

Thanks Colonel. How about aluminum cased? Is it something to avoid or to use only in certain guns?

[Bawanna]

I shoot aluminum with no concern, I don't know of anyone that reloads it. I never considered it. I imagine if there's a will there's a way but I got plenty of brass. Just unloaded about another 800 45's out of the tumbler, best batch yet. A little less Dawn and a little less Lemi Shine and they look like brand new virgin brass. I'm quite tickled.
I threw in some random nickel plated cases to see how those worked and they worked fine too.
Now if I had a pile of primers and more powder I'd be really set.

[dao]

Thanks for the info Colonel. I was asking because early last year, right before the pandemic drive prices sky high I picked up 500rd of .45 Blazer that is aluminum cased. Paid $11.49 per box of 50 :)

[Bawanna]

Thanks for the info Colonel. I was asking because early last year, right before the pandemic drive prices sky high I picked up 500rd of .45 Blazer that is aluminum cased. Paid $11.49 per box of 50 :)

That's why so many people like the aluminum. It's usually (before pandemic) reasonable. Especially good for folks that don't reload, you don't care about the brass.
I broke in my PM45 first range trip with 350 Blazer brass rounds out of the box. Me and my son shooting. Never failed.
We even used a bunch of it at the police department for practice ammo when we couldn't get anything else. The brass hoarders (like myself) didn't like it much and we couldn't trade in brass for credit but oh well.

[dao]

Yeah that last order cost me $.30 per round with shipping and tax. And since I don't reload I was happy then. I'd be ecstatic now to first of all find it, and then to pay twice that. I don't hoard ammo but I do try to keep a pretty good amount on hand. Except for .22lr during the Obama years I was fortunate to have had all I needed and didn't have to pay a premium during the scarcity. When the .22lr became available again I replenished when the price was down, along with the other calibers I keep, so this shortage has not hurt me either. So far.

[Canine Dave]

I shoot aluminum with no concern, I don't know of anyone that reloads it. I never considered it. I imagine if there's a will there's a way but I got plenty of brass. Just unloaded about another 800 45's out of the tumbler, best batch yet. A little less Dawn and a little less Lemi Shine and they look like brand new virgin brass. I'm quite tickled.
I threw in some random nickel plated cases to see how those worked and they worked fine too.
Now if I had a pile of primers and more powder I'd be really set.

I reload Al. You'll notice the headstamp contains the letters "NR", nicely reloadable. I reload 45 Al cases one time. Use win primers because they are yellow. Shoot these at the outdoor ranges so no concern about recovering them. Sweep them off the concrete into the gravel. 3.9grs BE, Bob's 160 grain bullet.

[340pd]

What is enough primers, powder, bullets, or loaded ammo. I never seem to be able to answer that question.

[Canine Dave]

What is enough primers, powder, bullets, or loaded ammo. I never seem to be able to answer that question.

That's a good question. I have too much.

[CharlieW]

Too much is just enough.

[Covert Kahr]

What is enough primers, powder, bullets, or loaded ammo. I never seem to be able to answer that question.

There’s only two times that you can have too much ammo; when you’re on fire or you’re swimming.