Sig Sauer X-Macro Comp Review: Is this the 17+1 CCW King?

Quick Answer

The X-Macro Comp takes the P365 idea and stretches it in the right places. You get a slim 9mm with 17+1 capacity, an optics-ready slide, and a built-in comp that helps keep the gun flatter in fast strings. The tradeoff is a taller grip that can print more than smaller P365 models. If you want high capacity in a thin carry pistol, it's a top pick.

Key Takeaways

• 17+1 capacity in a thin carry frame changes the CCW math
• Built-in comp helps reduce muzzle rise in quick follow-up shots
• It comes with XRAY3 day/night sights, and your optic choice decides whether you can still use the irons once a dot is installed.
• Grip height can print more than smaller P365 options
• Mags can feel tight to seat at first, train your reloads

The X-Macro Comp offers something many CCW carriers have wanted for years: high capacity in a slim package, plus a compensator that actually works. Most slim 9mms hold 10-12 rounds and jump during rapid fire. This one packs 17+1 and stays remarkably flat through strings of fire. It's changing what people expect from carry pistols.

The X-Macro Comp in One Sentence

The Sig Sauer P365 X-Macro Comp is a 9mm carry pistol about 1.1 inches wide (overall width), 17+1 round capacity, slide-integrated compensator, standard optics-ready setup, and full-size M1913 rail – all in a package not much bigger than many 10-round compacts.

Specs and Features That Matter for Carry

Size and weight that impact concealment

The X-Macro Comp packs a lot into a small package. At just 6.6 inches long and 1.1 inches wide, it stays slim where it counts. The height grows to 5.2 inches to fit those 17-round mags, which is the main concealment challenge. Empty weight sits around 21.5 ounces – light enough for all-day carry but heavy enough to tame 9mm snap.

The taller grip means you'll need holsters built for this specific model. Standard P365 holsters won't fit. This height can print more under tight shirts, so plan your wardrobe and carry position with care.

Capacity and magazine design

Those 17-round mags are the star of the show. They fit flush with the grip and feature high-visibility orange followers. The mags lock in firmly and drop clean when released. 

But there's a quirk to note: these mags can be tight to seat on a closed slide when fully loaded. You'll need to give them a solid push. This tends to improve with use as the springs break in. For faster reloads, an open slide helps the mag seat easier.

People with larger hands may find the mag release can get blocked by their grip. It's not the gun's fault – just physics when you have big mitts on a slim frame.

Integrated comp and slide design

The integrated compensator on the X-Macro Comp features top ports that direct gas upward. This pushes the muzzle down during fire, reducing flip for faster follow-up shots. 

What makes this comp different is that it's milled into the slide itself – not an add-on part. The ports are only on top, which helps minimize side blast while still cutting muzzle rise.

After about 1,000 rounds, the comp ports may need cleaning to remove carbon buildup. This is normal maintenance for any compensated pistol.

Optics-ready setup and irons

The slide comes cut for optics from the factory, and this is key; it doesn't force you to lose your rear sight when mounting a red dot. Many optics-ready pistols make you choose one or the other.

The gun ships with X-RAY3 day/night sights that stay visible even in dim conditions. From the factory it’s optic-ready with the Shield RMSc footprint (SIG lists it as ‘COMPACT (Shield RMSc)’), so pick dots that match that pattern.. But always confirm your specific model's fit before buying.

Model Comparison

Model	Height	Width	Capacity	Barrel Length	Rail Type
X-Macro Comp	5.2"	1.1"	17+1	3.1"	M1913
P365 XL	4.8"	1.1"	12+1	3.7"	Proprietary
P365	4.3"	1.1"	10+1	3.1"	Proprietary
Glock 19 (Reference)	5.0"	1.3"	15+1	4.0"	M1913

Where It Fits in the P365 Family

The four footprints readers confuse

The P365 family has expanded quickly. Here's how they differ:

• The original P365 is the smallest, with a 3.1-inch barrel, 5.8-inch length, 4.3-inch height, and 10+1 capacity.
• The P365 X keeps the same slide but adds a slightly longer grip for 12-round mags.
• The P365 XL stretches both the slide (3.7-inch barrel) and grip (12-round mags).
• The X-Macro keeps the same length as the XL but expands the grip height to 5.2 inches for 17-round mags. It also upgrades from a proprietary rail to a standard 1913 rail.

What the Comp version changes

The Comp variant of the X-Macro uses a shorter 3.1-inch barrel combined with the compensated slide. You lose a bit of barrel length compared to the standard X-Macro, but gain muzzle control through the comp ports.

This setup creates a tradeoff: potential small velocity reduction from the shorter barrel against better control for fast strings of fire. For defensive distances, this balance tends to favor control over raw speed.

Who This Pistol Is For

Best match buyers

The X-Macro Comp shines for CCW carriers who want maximum capacity without a thick double-stack frame. It's ideal for people who:

• Value having 17+1 rounds on tap but hate wide, bulky guns
• Plan to run a red dot on their carry gun
• Want faster follow-up shots in training or competition
• Need a gun that fits larger hands while staying slim

Not the best match buyers

This isn't for everyone. You might want to look elsewhere if you:

• Need the absolute deepest concealment possible
• Prefer shorter grips that print less
• Don't want the extra cleaning needs of a compensator
• Are on a tight budget (standard P365 models cost less)

Fit, Feel, and Carry Comfort

Grip length, texture, and backstraps

The longer grip on the X-Macro gives most hands plenty of room for a full firing grip. No more hanging pinky fingers. The texture is aggressive enough to stay put during rapid fire without being so rough it irritates bare skin during all-day carry.

Sig added interchangeable backstraps to the X-Macro. It lets you adjust the grip to fit different hand sizes. This customization helps the gun feel right for more shooters.

Controls and reload ergonomics

The flat trigger is generally measured in the mid-4 to ~5 lb range with a defined wall and a short reset (exact weight varies by sample). The oversized controls work well even with gloves, and the slide serrations provide good purchase for manipulations.

The magazine well has a slight internal bevel to guide reloads home. With practice, this design makes reloads smoother. The magazines themselves need a firm push to seat when fully loaded on a closed slide.

Holster and belt notes

A good holster matters more with the taller grip of the X-Macro. Look for designs with adjustable retention and a wing/claw to pull the grip closer to your body.

Ride height adjustment can help minimize printing from that taller grip. For appendix carry, a holster with an adjustment wedge can improve comfort and concealment.

Range Performance and Control

Control in fast strings

The X-Macro Comp's standout feature is how it handles during rapid fire. The compensator pushes the muzzle downward. It  counteracts the natural rise you'd feel with each shot. This helps you get back on target faster for follow-up shots.

For those running a red dot, this means the dot stays in the window more consistently between shots. The gun tracks are flatter and more predictable than uncompensated models of similar size.

Practical accuracy

At defensive distances (3-15 yards), the X-Macro Comp delivers consistent hits. The 3.1-inch barrel provides adequate velocity for common defensive ammunition, and the X-RAY3 sights offer a clear sight picture.

Adding a red dot amplifies the gun's practical accuracy. The optics-ready slide makes this an easy upgrade, and you don't lose your iron sights in the process.

Malfunction record and ammo notes

Tests show excellent function across ammunition types. From cheap range ammo to premium defensive loads, the X-Macro Comp runs without issues. The gun handles 115gr practice rounds just as well as 124gr and 147gr defensive loads.

New magazines may feel stiff at first. They tend to loosen up after use, but initial range sessions should include practice seating fully loaded magazines firmly.

The Compensator Questions People Ask

Does a comp change low-light use?

The compensator does create a more visible flash in low light conditions, but this effect is often exaggerated online. The top ports direct most blast upward, not to the sides where it would impact your vision more directly.

For defensive use, the momentary flash from any pistol shot will affect night vision. A comp can increase visible flash depending on ammo and lighting; the practical impact varies, so test your carry load in low light if you can.

Shooting from retention and heat gas

The compensator vents hot gas upward when fired. This becomes important if you're shooting from a retention position close to your body.

When the comp is very close to or touching your body, the vented gas can cause discomfort or minor burns. The X-Macro Comp mitigates this somewhat by using only top ports rather than side ports. Still, proper training for retention shooting should include angling the gun slightly away from the body.

Always train retention shooting with qualified instructors who can teach safe techniques specific to compensated firearms.

Cleaning and upkeep

The comp ports will collect carbon over time. After about 1,000 rounds, you may notice some buildup that needs cleaning. A good scrub with your favorite solvent and a brush will clear the ports.

The rest of the gun's maintenance is standard. Regular cleaning of the barrel, slide, and frame keeps everything running smoothly. Pay extra attention to the comp ports during your normal cleaning routine.

What Sets It Apart From Other CCW Options

The X-Macro Comp combines features rarely found together in the CCW world. You get 17+1 capacity in a frame just 1.1 inches wide. The integrated comp helps tame muzzle flip without requiring aftermarket work. The standard M1913 rail opens up light and laser options beyond proprietary accessories.

What you trade for these benefits is a taller grip that requires more attention to concealment. For many carriers, this balance tilts heavily toward the X-Macro Comp, especially if capacity and shootability top your priority list.

By the Numbers Style Scorecard

Function under volume fire: 5/5

Runs clean through hundreds of rounds with diverse ammo types. No hiccups even with extended use. The comp stays effective without needing adjustment.

Handling and controls: 4/5

Controls are easy to reach and operate. Only ding is that magazine release can contact larger hands and that full mags need firm seating.

Hit consistency at carry distances: 5/5

Excellent sight tracking between shots. The comp helps keep the sights on target for faster follow-ups. An optical-ready slide enhances precision further.

Upgrade options: 5/5

Standard rail, optics cut, and widespread adoption mean plenty of holsters, lights, and sights are available. The ecosystem is mature.

Price for features: 4/5

Street price around $699-$799 reflects premium features. Not budget-friendly but delivers value through capacity, comp, and optics readiness.

Common Upgrades and Setup Tips

Optic pairing basics

When selecting a red dot, match it to the footprint the slide accepts. Look for a dot with good battery life and brightness settings that work in your lighting conditions. Window size matters; larger windows help with dot acquisition during the draw.

Always confirm screw length before mounting. Too-long screws can damage your gun's internals. A drop of blue threadlocker keeps things secure without making future changes impossible.

Light pairing basics

The standard M1913 rail accepts common weapon lights. For concealed carry, compact lights balance illumination with bulk. The light should sit flush with or just slightly past the muzzle for best balance.

Remember that adding a light requires a holster built specifically to accommodate that light model. Universal holsters rarely work well for light-bearing guns.

Spare mag plan for real life carry

One spare magazine complements the X-Macro Comp well. With 17+1 rounds in the gun and 17 more in a spare mag, you have 35 total rounds far beyond what most defensive situations require.

Practice reloads regularly, both administrative (careful, unrushed) and tactical (under time pressure). Pay attention to how the mags seat in different body positions.

Field Strip and Basic Maintenance

How-To: Field strip the X-Macro Comp safely

1. Confirm the gun is unloaded by removing the magazine and checking the chamber.
2. Lock the slide to the rear.
3. Rotate the takedown lever clockwise.
4. Release the slide stop and ease the slide forward off the frame.
5. Remove the recoil spring assembly and barrel from the slide.
6. Clean all components with appropriate solvents and brushes.
7. Pay extra attention to the compensator ports, which collect carbon.
8. Reassemble in reverse order.
9. Perform a function check after reassembly.

Always follow manufacturer guidelines and safety protocols when handling firearms. Never clean a loaded gun.

Conclusion

The Sig Sauer X-Macro Comp hits a sweet spot for many CCW carriers. It packs 17+1 rounds into a slim frame, adds an effective compensator, and comes optics-ready from the factory. These features come with minimal tradeoffs mainly just a taller grip that needs more careful concealment.

For those who value capacity and shootability over absolute concealment, the X-Macro Comp deserves serious consideration. It pushes the boundaries of what we expect from carry pistols without crossing into full-size territory.

If deep concealment trumps capacity in your needs, the smaller P365 models remain excellent options. But for maximum firepower in a still-concealable package, the X-Macro Comp sets a high bar that few competitors can match.

The SIG SAUER P365 X-Macro Comp represents the modern evolution of concealed-carry handguns, blending capacity, control, and concealability. If you’re still exploring what we consider the best carry pistols on the market, check out Top Concealed Carry Firearms on the Market to compare top contenders before making your decision.

Frequently Asked Questions (FAQ)

What is the difference between the P365 X and the X-Macro?

The X-Macro has a taller grip for 17-round magazines instead of 12, uses a standard M1913 rail instead of a proprietary one, and has a slightly different grip texture and ergonomics.

Is the X-Macro Comp too big for concealed carry?

No. It's slimmer than a Glock 19 but slightly taller. The 1.1-inch width helps it conceal well with appropriate holsters and clothing. The height is the main dimension that might print.

Does the integrated comp in X-Macro Comp help in real drills?

Yes. The top ports direct gas upward to push the muzzle down during firing. This creates flatter shooting with less muzzle rise between shots. The effect is noticeable in rapid-fire strings.

Do the mags seat hard when fully loaded in X-Macro Comp?

Yes, especially when new. Fully loaded magazines need a firm push to seat on a closed slide. This becomes easier as the magazine springs break in with use.

Does the comp need extra cleaning in X-Macro Comp?

Yes. The ports will collect carbon after a few hundred rounds. Clean them with your standard solvents and a brush. Most users report cleaning needs around the 1,000-round mark.

About the Author

This article was written by the Pro Armory writing team based on current research, including studies from reputable sources like the Journal of Military Science, Firearms News, and the National Shooting Sports Foundation. We also referenced trusted information from official defense publications and respected firearm authorities such as the ATF, NRA, and manufacturer manuals.

Disclaimer: This review is for education only. Laws vary by state and city and can change. Follow safe handling at all times. Read your owner's manual. Verify local rules before you buy or train.