Description
When Sig rolled out the P365 X-MACRO Comp, it changed what people expect from a carry gun. You get full-size capacity, 17+1 rounds of 9mm, in a package that stays close to an inch wide and weighs around 21.5 ounces unloaded. The trick is the new steel magazine design paired with the Macro grip module, which gives you a full grip with no dangling pinky and no bulky double-stack width to print through a shirt.
Why the X-MACRO Comp Shoots So Flat
The headline feature here is the integrally compensated slide. Instead of a bolt-on comp hanging off the muzzle, Sig ported the slide and barrel assembly itself, venting gas upward to fight muzzle flip. The result is a 3.1 inch gun that recovers between shots like something much bigger. Pair that with the low bore axis, the extended beavertail, and the high undercut on the trigger guard, and fast follow-up shots come naturally. XRAY3 day/night sights handle low light out of the box, and the optics-ready slide accepts popular micro red dots without giving up your rear sight.
Built for Everyday Carry
The Macro grip module includes a full 1913 accessory rail up front, so mounting a light is no problem, and it ships with small, medium, and large backstraps to dial in the fit for your hand. Front and rear slide serrations give you plenty to grab for press checks and reloads, and the flat trigger breaks clean with a comfortable reach. Holster support is everywhere thanks to how popular this platform has become.
What You Get With the P365 X-MACRO Comp
Sig includes two 17-round steel magazines, so you are carrying 35 rounds between the gun and a spare mag. It runs the same proven fire control unit as the rest of the P365 family, built in Newington, New Hampshire. For anyone who wants duty-gun capacity and shootability in a pistol that disappears under a t-shirt, this one is tough to beat.
Key Specifications
- Manufacturer: Sig Sauer
- Model: P365 X-MACRO Comp
- MPN: 365XCA-9-COMP
- UPC: 798681669981
- Caliber: 9mm Luger
- Action: Striker Fired
- Capacity: 17+1 Rounds
- Barrel Length: 3.1 in
- Overall Length: 6.6 in
- Width: Approx. 1.1 in
- Weight (Unloaded): Approx. 21.5 oz
- Slide: Integrally Compensated, Optics Ready, Front & Rear Serrations
- Sights: XRAY3 Day/Night Sights
- Grip Module: Macro-Compact with 1913 Accessory Rail
- Finish: Black Nitron
- Manual Safety: No
What’s Included
- Sig Sauer P365 X-MACRO Comp pistol
- Two 17-round steel magazines
- Interchangeable backstraps (small, medium, large)
- Owner's manual
- Cable lock
Frequently Asked Questions
Does the compensator on the P365 X-MACRO Comp really make a difference?
It does. The compensator is machined into the slide itself, venting gas upward to counter muzzle rise. Combined with the low bore axis and full grip, the gun tracks flatter during rapid fire than most pistols this size, which means quicker, more accurate follow-up shots.
What red dots fit the P365 X-MACRO Comp?
The slide is cut for the RMSc footprint, so optics like the Sig Romeo Zero Elite, Romeo-X Compact, Holosun 507K, and Shield RMSc mount directly. A nice bonus is that the rear sight stays usable with most micro dots installed, giving you backup irons without extra plates.
Is the X-MACRO Comp still practical for concealed carry with a 17-round magazine?
Yes, and that's the whole point of this gun. It keeps the slim roughly one-inch-wide profile of the P365 family while the longer Macro grip houses flush-fit 17-round steel mags. It carries more like a micro-compact than a duty gun, and holster options are plentiful.
Does this model have a manual safety or a rail for a light?
There is no manual thumb safety on this version, which many folks prefer for a defensive pistol. The grip module does include a full-length 1913 rail, so standard compact weapon lights and lasers mount right up without adapters.




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