Sig Sauer P365 Family of Guns: An Overview

The Sig Sauer P365 is an excellent micro-compact that’s won over countless gun owners. It offers good capacity, ease of concealment, and a comfortable ergonomic design, so it comes as no surprise that it’s a top-selling handgun. In fact, the P365 is so popular that Sig Sauer has created an extensive family of handguns under the P365 name. If you’ve ever wondered which P365 would be best suited to your needs, we’re here to help you figure it out.

SIG P365 customized
There are endless options for the Sig P365, including numerous customized models. (Photo: AB Prototype)

What is the Sig Sauer P365?

Sig Sauer released the first P365 in 2017 when the slim carry gun offered a lot of features and capacity that were not readily available on the market. It’s a striker-fired pistol chambered in 9mm Luger with a capacity ranging from 10 to 17 rounds depending on the magazine used. Most users prefer the flush-fit magazine for concealment, meaning lower capacity. It has a 3.1-inch barrel, an overall length of 5.8 inches, and a height of 4.3 inches. Empty, it weighs in around 18 ounces. So, as you can imagine, it’s a great little micro-compact that can be easily concealed by most—if not all—gun owners.

The first P365 features angled serrations at the front and back of the slide to facilitate manipulations, an aggressively textured grip for a firm hold during live fire, and a rounded trigger guard. The gun’s edges are rounded to reduce the risk of snagging, and the factory trigger has a reasonably crisp break. Overall, it’s a well-made gun that’s worth recommending to people, including first-time gun owners.

In 2018 and 2019, the Sig P365 enjoyed such brisk sales it was basically the top-selling handgun in the country. Unsurprisingly, Sig Sauer started releasing new variants of the P365, including models of different sizes, chamberings, and operational features. For this article, we’re going to take a closer look at a few specific models, but this is a list of many of the currently available Sig Sauer P365 variants:

Sig P365 Variants

  • P365 SAS
  • P365-XL
  • P365-XL Rose Comp RomeoZero Elite
  • P365 California Compliant
  • P365-AXG Legion
  • P365-XMACRO
  • P365 Robins Egg Blue
  • P365 380
  • P365 Optic Ready
  • P365-380 Rose
  • P365X
  • P365X RomeoZero Elite
  • P365 Nitron Micro Compact

As you can see, this family has plenty of guns to choose from. Some variants are simply the same guns that ship with a red dot already installed, and others have specific changes to features, like a longer barrel. We’ve narrowed the P365 family of guns down to a few that are most likely to fit your needs.

SIG P365 380
The Sig P365 380 is visually the same as the 9mm model and has the same dimensions, too. (Photo: Sig Sauer)

What’s the Sig Sauer P365 380?

For shooters who prefer a gun chambered in .380 ACP, there’s the Sig Sauer P365 .380, which is also available as a Rose edition. This gun was launched in 2021 and became readily available in 2022 with a capacity of 10 +1 and a flush-fit magazine. Its barrel length is 3.1 inches—the same as the original, 9mm model—and other dimensions remain the same as well. It’s essentially the same P365 everyone knows and loves but chambered in a different caliber.

What’s the Sig P365-XL?

Not only can you successfully conceal a full-sized handgun, but you can definitely conceal one that’s just a little bigger than the micro-compact P365. Whether it’s due to having larger hands or just preferring the feel of a larger gun, many gun owners gravitate to the Sig P365-XL for its larger grip dimensions. This gun has a barrel length of 3.7 inches, which gives it good balance. It has an overall length of 6.6 inches, a height of 4.8 inches, and a width of 1.1 inches.

Further, this model is chambered in 9mm Luger and has a 12 +1 capacity with a flush fit magazine. This gun is ideal for many hand sizes and has fantastic balance with its longer barrel. It’s still a good size for concealment and delivers the same reliability and durability as smaller P365s.

sig p365 axg legion
The Sig Sauer P365 AXG Legion is a beautifully designed and enhanced model. (Photo: Sig Sauer)

What’s the Sig Sauer P365 AXG Legion?

Sig Sauer’s Legion line is well known for offering top-performing handguns with enhanced features. The Sig P365 AXG Legion is a more recent addition to the P365 family and offers a whole host of performance-enhancing features. Like most guns in the line, it’s chambered in 9mm Luger, but it offers something the other’s done: fantastic capacity. The P365 AXG Legion boasts a 17+1 capacity.

The P365 AXG Legion comes equipped with an AXG grip module and custom rubberized G10 grips that feel good in the hand and help the shooter maintain their grip with wet or sweaty hands. Full-height serrations are placed at the back of the slide, and reduced-height serrations are placed at the front for faster slide manipulations. The gun has a Picatinny accessory rail ahead of the trigger guard, which opens up a lot of possibilities for aftermarket accessories. A flat-faced trigger comes standard and has the expected clean break and short reset.

Needless to say, the P365 AXG Legion is the Gucci “collector-grade” version of the P365.

sig p365 rose
The Rose model has rose gold parts, and the Sig rose logo on the grips. (Photo: Sig Sauer)

What’s the Sig P365 XL Rose Comp RomeoZero Elite?

Sig Sauer launched the Rose edition to appeal to female shooters and introduce them to shooting sports. The Sig Sauer P365 XL Rose Comp RomeoZero Elite is one of the Rose guns that is, as its name suggests, the larger XL design. Even better, this gun is optics-ready and comes with a Sig Sauer RomeoZero red dot sight already mounted from the factory. It has a 3.7-inch barrel, an overall length of 6.6 inches, and a height of 5.5 inches. It weighs 20.7 ounces, empty.

The P365 Rose XL Comp RomeoZero is black with rose gold touches. The trigger, controls, and optic housing are all rose gold. As expected, the grip module is aggressively textured, but it also features the signature Sig Sauer Rose logo. This quality pistol is the perfect introduction to firearms for many shooters.

Should you get a Sig Sauer P365?

As you can see, there’s a Sig Sauer P365 for everyone. The company has even figured out ways to appeal to people who like red dots, have bigger hands, or want aesthetic touches to their guns. These guns check the boxes necessary for carry use, such as reliable cycling, accuracy on target, and a comfortable fit in the shooter’s hand. If you’re looking for a carry gun, the Sig P365—or one of its many variants—could be perfect for you.

Which Sig Sauer P365 is your favorite? Tell us in the comments.

Kat Ainsworth Stevens is a long-time outdoor writer, official OGC (Original Gun Cognoscenti), and author of Handgun Hunting: a Comprehensive Guide to Choosing and Using the Right Firearms for Big and Small Game. Der Teufel Katze has written for a number of industry publications (print and online) and edited some of the others, so chances are you've seen or read her work before, somewhere. A woman of eclectic background and habits, Kat has been carrying concealed for over two decades, used to be a farrier, and worked for a long time in emergency veterinary medicine. She prefers big bores, enjoys K9 Search & Rescue, and has a Master's Degree in Pitiless Snarkastic Delivery.

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