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The P365 X-Macro Comp has always been one of the more interesting entries in the P365 family, and this ROMEO-X SIG-LOC configuration takes it a step further by delivering a complete, factory-configured carry gun that doesn't need anything added before it goes to work. The compensator is milled directly into the slide rather than bolted onto the barrel, which means it keeps the overall length trim at 6.6 inches while still venting propellant gases upward to reduce muzzle flip by a meaningful amount. Practically speaking, the gun shoots noticeably flatter than a non-compensated compact, and getting back on target quickly feels effortless compared to what you'd expect from a pistol this size.
The big deal with this specific configuration (MPN 365XCA-9-COMP-RXSL) is the factory-mounted ROMEO-X SIG-LOC Compact optic. The SIG-LOC mounting system uses a bottom-mount design that creates five points of contact between the slide and optic, which translates to extremely consistent zero retention even under hard recoil and daily carry conditions. The optic sits low enough to allow full co-witness with the standard XRAY3 tritium night sights, so you're not giving anything up in the iron sight department when running the dot. The ROMEO-X features a circle-dot reticle with a fully enclosed and sealed emitter, a side-loading CR1632 battery that you can swap without removing the optic, and MOTAC motion-activated illumination that shuts off automatically and powers back up the instant it senses movement. Battery life is rated at up to 20,000 hours. For a carry gun, this level of optics integration is genuinely impressive.
The XMacro grip module was engineered to fit a 17-round double-stack magazine into a frame that measures just 1.1 inches wide, which is a real engineering feat. Three interchangeable backstraps (small, medium, and large) are included so you can dial in the fit to your hand. The grip features a deep beavertail, aggressive texture that holds even in wet conditions, and a standard 1913 Picatinny rail for lights and accessories. The flat-faced trigger breaks cleanly and resets quickly, and the overall ergonomics work well for a wide range of hand sizes. It is worth noting that the XMacro uses its own proprietary 17-round magazine design, which is not interchangeable with standard P365 or P365 XL magazines, so plan accordingly when buying spares.
Two 17-round steel magazines with high-visibility followers come in the box. This pistol is covered by SIG's fully-transferable Infinite Guarantee.
Yes. This specific model (MPN 365XCA-9-COMP-RXSL) ships with the ROMEO-X SIG-LOC Compact optic factory-installed on the slide. The SIG-LOC mounting system uses a bottom-mount design with five points of contact, so the optic is secured from the factory and zeroed to the pistol. You don't need to source an adapter plate or additional hardware.
Yes, and this is one of the key advantages of the SIG-LOC mounting system. The optic sits at an ultra-low deck height that allows the factory XRAY3 day/night tritium sights to co-witness through the optic glass at standard height, so you have a full backup iron sight picture without needing taller suppressor-height sights.
No. The XMacro grip module uses a wider magazine well designed specifically for the XMacro's proprietary 17-round double-stack magazines. These magazines are not interchangeable with standard P365, P365X, or P365 XL magazines. If you plan to buy spare magazines, make sure you're purchasing the XMacro-specific 17-round steel mags.
The compensation chamber is machined directly into the slide rather than attached to the barrel, which lets propellant gases vent upward to reduce muzzle flip during firing. Because the compensator is built into the slide and not threaded onto the barrel, the barrel still removes from the slide normally during field stripping, keeping the cleaning process straightforward compared to pistols with barrel-mounted compensators.
The XMacro Comp features a full-length standard 1913 Picatinny rail, which accepts a wide range of compact weapon lights and lasers from manufacturers like Streamlight, SureFire, and Surefire. This is an upgrade over earlier P365 models that used a proprietary SIG-specific rail, so compatibility with third-party accessories is much broader on the XMacro.
The ROMEO-X SIG-LOC Compact uses a side-loading CR1632 battery compartment, which means you access the battery from the side of the optic rather than from underneath. You never need to remove the optic from the slide to change the battery, so your zero stays intact. The MOTAC motion-activated illumination also extends battery life to a rated 20,000 hours.
| UPC | 798681720316 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 365XCA-9-COMP-RXSL |
| Action | |
| Barrel Finish | Black |
| Barrel Length | 3.1" |
| Caliber/Gauge | 9mm |
| Capacity | 17 + 1 |
| Color | Black |
| Length | 6.6'' |
| Magazine Included | 2 x 17-Round |
| Model | |
| Number of Magazines | 2 17 rd. Steel Magazines |
| Product Type | Semi-Auto Pistol |
| Shipping Weight | 0.0 |
| Sights | Std. X-RAY 3 Day/Night Sights |
| Sights Type | Night Sights |
| Slide Description | Serrated w/Optic |
| State Restriction (CA) | NO DIRECT SHIP TO CALIFORNIA |
| State Restriction (RI) | NO DIRECT SHIP TO RHODE ISLAND |
| State Restriction (WA) | NO DIRECT SHIP TO WASHINGTON |
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