Concealed Carry

Answers to 5 Common Questions About the SIG P365

SIG P365

SIG Sauer has long been known for powerful, accurate handguns.

It’s no surprise that the P365 — one of their smallest handguns yet — is a popular seller.

The P365 is the perfect size to conceal and it’s got an unprecedented 10-round magazine, making it one of the best pistols out there for home defense.

But, like with any gun suddenly skyrocketing to fame, curious marksmen (including myself) started asking more detailed questions about this weapon: Is it easy to clean? What kinds of add-ons can I put on it?

So, let’s address five of the most common questions about SIG’s powerhouse pocket pistol, the P365.

1. How Do You Clean a SIG P365?

For an incredibly detailed explanation of how to clean your P365, you can always refer to your included user manual.

But, if you can’t wait to get back to the real fun of shooting this gun, here’s a more simplified checklist:


To take the P365 apart:

  1. Make sure the firearm is unloaded.
  2. Hit the magazine release button on the side. Let the magazine release out and set it off to the side.
  3. On the opposite side, you should be able to locate the slide release fairly easily. Push up on the release and pull the slide back completely.
  4. Rotate the disassembly lever right next to the slide release button 90 degrees.
  5. Let the slide back forward and it should come right off.
  6. The spring and barrel can now be lifted out of the slide assembly.

At this point, you’re all set to clean!


SIG P365 Extended Magazine
This extended magazine provides 15 rounds of firepower for your standard SIG P365.



To clean the P365:

  1. Starting with the barrel, take a clean patch with a few drops of lubricant and run it through and around the barrel to release any residue. (I also like to take a brush and scrub the outside a bit, just to be sure I’ve knocked off any residual carbon.)
  2. Do the same thing with the slide, but be sure to angle it down towards the muzzle end to avoid getting any oil into the firing-pin assembly. (I always pay a little special attention to the extractor and make sure to carefully oil in between the rails. For the rails, I prefer using a pick, but a toothbrush should work fine in a pinch.)
  3. Next, wipe down the guide rod and spring, clearing it of any debris.
  4. Work in some lubricant all around the frame, then you can repeat the process with a clean dry patch. I run the dry patch in and around all components several times until it comes out clean.

That’s all there is to cleaning your SIG P365!

Lubricating and Reassembly

Lubricating my P365 usually only takes a few well-placed drops of oil. Here’s my process:

  1. One drop of oil where the connector and trigger bar meet.
  2. One drop for the rail contact points.
  3. Three drops on the slide. One on each slide rail and one on the part where the barrel makes contact. (Make sure the barrel end is still pointed down!)
  4. Two drops on the barrel, one on each end spreading the oil around the whole surface.
  5. Use any excess oil to work into areas that show wear.

Now, you’re ready to reassemble! Just reverse the steps from when you took it apart and your SIG P365 is cleaned, lubed and ready to roll.

2. Does the SIG P365 Have a Safety?

While there is no safety lever on the trigger’s face, the P365 does have a manual thumb safety (on some variants), making it one of the safest concealed-carry weapons on the market.


SIG P365 with Manual Safety
The SIG P365 can be had with or without an ambidextrous manual thumb safety depending on the user’s preference.


3. What’s the Best Ammo to Use with the P365?

SIG Sauer recommends that any marksman using the P365 uses newly-manufactured SAAMI or NATO-compliant ammunition.

The Sporting Arms and Ammunitions Manufacturers Institute (SAAMI) creates specific industry standards for safety, interchangeability, reliability and quality of firearms, ammo and components.

Some rounds that are not recommended for the SIG P365 are +P+ (these may void your warranty) and hand-loaded or reloaded ammo. The P365 will fire +P ammunition.

SIG does have special ammo specially-designed for the P365, including training 115-grain FMJ as well as Defensive 115-grain JHP.

If you can’t find these rounds at your local retailer, however, my top choice for the P365 is Federal’s HST Micro.


The SIG Sauer P365 is also available in a SAS version with flush-mounted bullseye sights and a ported barrel.


4. How Is the P365 Different from a GLOCK 43 or 26?

The P365 is sometimes compared to the GLOCK 43 because of its size. The main difference between the two weapons is the amount of rounds each magazine can hold.

While the GLOCK 43 magazine holds six rounds, the SIG P365 will hold an unprecedented 10+1 rounds —double-stack capacity in a single-stack-sized package.

The GLOCK 26, on the other hand, also holds 10+1 rounds, but is larger and heavier than the P365. Every dimension of the P365 is smaller except the width, which is the same size.

The SIG P365 is also easier on the trigger finger and gives much more purchase on the grip than the G26 (for me, at least).

The GLOCK 43 is similar in size to the SIG, but holds fewer rounds in the magazine.

5. What Accessories Are Recommended for Use with the P365?

You really need to make sure you only add accessories that are compatible with this weapon.

Here are my favorite add-ons for the P365:

  • P365 Flat Trigger – This trigger upgrade gives you a lower finger placement that creates a smoother and more consistent pull.
  • Talon Stick-On Gun Grip – This easy-to-install grip gives you great texture and incredible control. It’s one of my go-to add-ons for all my CCW’s because you get so much improvement for such a small cost.
  • IWB DeSantis Holster – A great CCW isn’t much good if you don’t carry it. This amazing holster is comfortable enough for everyday carry and is extremely durable.


SIG P365 XL with Red Dot Sight
There is also a larger P365 XL variant that includes a longer barrel, longer grip, flat-face trigger and optics mount.


Conclusion: SIG Sauer P365

SIG’s ultimate concealed-carry handgun, the P365, is an incredibly accurate and dependable weapon.

Now that you’ve got the answers to questions about everything from cleaning to accessories, you can decide for yourself if this powerhouse pistol is the right fit for you.

Do you have any more questions about the SIG P365? Or would like to share your personal experience with the firearm? Let us know in the comments down below!

About the Author:

Richard Douglas

Richard Douglas is a firearms expert and educator. His work has appeared on large publications like The National Interest, Daily Caller, American Shooting Journal, and more. In his free time, he reviews optics on his Scopes Field blog.
The Mission of Cheaper Than Dirt!'s blog, The Shooter's Log, is to provide information—not opinions—to our customers and the shooting community. We want you, our readers, to be able to make informed decisions. The information provided here does not represent the views of Cheaper Than Dirt!

Comments (9)

  1. It looks like it was built with the option of having the slide release on the right side. Does anyone know if this change can be implemented? I have right hand issues and it would be faster to be able to release the slide with my thumb. Or, looking for a small carry good for lefty. Safety and slide release on the right.

  2. I have a several P365 Sigs. One tan and the other black, the .380 version and the 365XL. I love all of them. Currently carrying the black 9mm version. It works every time I pull the trigger. I currently am using a 17 round magazine with one in the chamber for 18 rounds and one 10 shot spare clip. I use a Desantis, IWB Kydex holster. I shoot this gun very well. The night sights are incredible. All great with this gun and the other variants of the Sig P365😊

  3. I want to know if the sig. 380 has double strike capable. I see it’s a double action striker fired, but does it have the double action double strike/

  4. I’ve carried my P365 for 4+ years now. I use Hornady Critical Duty 135gr +P. The Hornady ammo gave the best groups out of the SD ammos I tried, and it outperformed SIG’s proprietary SD Ammo. Not that the proprietary ammo was bad, the Hornady was just a little better.
    I do shoot handloads through the gun without issue. A 124 gr FMJ over 4.2 grains of TiteGroup yield acceptable function and comes fairly close to replicating my Carry Ammo. I’ve had no luck finding 135gr FMJ’s, so 124gr is the closest I can find.
    I carry with the 10 round magazine in the gun, the 12 round prints to easily. I carry 2 12 round mags as back up.
    I use the DeSantis Mini Slide as a carry holster and DeSantis 2 mag holder they developed exclusively for the P365. In winter, I use a shoulder holster with heavy coat weather.
    The SIG replaced my previous carry gun, a PPK/S. My aging eyes necessitated the change. I could no longer make out the sights on the PPK/S in Low Light Drills. The P365 Night Sights corrected the problem.

  5. Bought P365SAS. Really like it. Easy to shoot. No issues with any ammo. I am still working on getting more accurate with a pistol. Looking for a good carry holster. Very happy with the gun.

  6. The P365 also has both 12 round mags and 15 round factory mags available. Pearce makes a grip extension that replaces the flat base on those 10 round magazines without one. I normally keep a 12 round mag in my P365 and I often put a 15 round mag in my magazine pouch as a spare. I’ve had no problems whatsoever with my P365.

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