SIG SAUER ROMEO-X Pistol-Mounted Reflex Sight SORX1231
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Sig Sauer

SIG SAUER ROMEO-X Pistol-Mounted Reflex Sight (SORX1231)

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Price $263.99
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product variation SIG SAUER ROMEO-X Pistol-Mounted Reflex Sight (SORX1231) image
product variation SIG SAUER ROMEO-X Pistol-Mounted Reflex Sight (SORX1231) image
product variation SIG SAUER ROMEO-X Pistol-Mounted Reflex Sight (SORX1231) image
product variation SIG SAUER ROMEO-X Pistol-Mounted Reflex Sight (SORX1231) image
product variation SIG SAUER ROMEO-X Pistol-Mounted Reflex Sight (SORX1231) image
product variation SIG SAUER ROMEO-X Pistol-Mounted Reflex Sight (SORX1231) image
SKU:
SIGS-SORX1231
UPC:
798681699742
MPN:
SORX1231
Current Stock:
$263.99
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SIG SAUER ROMEO-X Pistol-Mounted Reflex Sight (SORX1231)
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Description

Features of SIG SAUER ROMEO-X Pistol-Mounted Reflex Sight SORX1231

  • Fits P365 and All Shield RMSc Footprints
  • Inspired by MIL-SPEC ROMEO-M17
  • Forged 7075 Aluminum Housing
  • Patent-Pending Beryllium Copper Flexure Arm
  • Distortion Free Aspherical Lens
  • MOTAC (Motion Activated Illumination)
  • 3 MOA Red Dot Reticle
  • Low Deck Height for Standard-Height Iron Sight Co-Witness
  • 20000 Hour Battery Life with Side Load Battery
  • 15 Illumination Settings Including 3 Night Vision

Product Info for SIG SAUER ROMEO-X Pistol-Mounted Reflex Sight SORX1231

Derived from military designs like the ROMEO- M17, ROMEO-X is engineered with everyday shooters in mind. Self-defense students who carry a pistol, range enthusiasts who train with their carry gun, and competitive shooters alike — all are fans of SIG’s ROMEO-X.

Meet the reflex sight that meets your needs as a civilian shooter. Built tough for the rigors of daily carry and optimized to mount without tools on your most common carry pistols: compact, optics-ready handguns.

Specs

  • Solid 70/75 Aluminum Housing. Military-spec construction with a civilian focus 
  • Patent-Pending Beryllium Copper Flexure. Secure mounting without the bulk of ring systems 
  • Aspherical Lens. Provide a distortion-free sight picture 
  • 3 MOA Dot. Balanced for precision shooting and defensive scenarios. 
  • MOTAC Technology. Automatically powers on when you need it 
  • Ultra-Low Deck Height. Co-witness your iron sights for a reliable backup aimpoint
  • Battery Life of 20,000+ Hours. And a side-load battery for easy changes. 
  • 15 Levels Of Brightness. Including 3 settings optimized for night vision compatibility
  • Designed, Tested, & Assembled in the USA. 

ROMEO-X by SIG SAUER isn’t your average reflex sight. It’s designed exclusively for concealed carry handguns — specifically pistols.

Compact Design, Built Tough 

ROMEO-X was created without range-only rigidity in mind. You’ll notice it’s slightly smaller than traditional reflex sights, but don’t mistake that for fragile.

The optic is still built from quality materials: forged aluminum housing and an ultra-durable lens. But the footprint is slimmed down to not interfere with holstering, and the mounting height is kept low so you can still see your iron sights as a backup.

Mounts Direct to Most Popular Carry Handguns 

ROMEO-X is designed for two specific mounting footprints: P365 and Shield RMSc. If your pistol has one of these mounts, you can attach the ROMEO-X directly without buying an adapter.

Leave Your Iron Sights On 

One of the biggest hurdles to adding a reflex sight to a carry gun is losing your iron sights. Many carry guns don’t offer optical mounts without removing the iron sights. Some shooters remove the iron sights from their carry pistols and replace them with optics.

Not so with ROMEO-X. This optic has a low profile, allowing you to see both the ROMEO-X dot and your iron sights at the same time. They co-witness. If your optic fails, you’ll still be able to aim with your iron sights.

Understanding MOTAC 

ROMEO-X features Motion Activated Technology, or MOTAC for short. With MOTAC, the optic sleeps when not in use, conserving battery life. Once you grab your pistol from the holster, the motion sensors activate the red dot.

This advanced technology saves battery, so you never need to worry about your optic dying. Even if you use your pistol daily, MOTAC will significantly extend the battery life of your ROMEO-X.

Changing the Battery 

Aside from never having to change your battery with MOTAC-enabled use, the ROMEO-X simplifies this process too. Most optics use a battery that must be threaded into the bottom. To change it, you have to unscrew the entire optic from your pistol.

ROMEO-X features a side-mounted battery that uses a proprietary cap. Screw it out, replace the battery, screw it back in. Quick, easy, and no tools required. 

How Long Does the Battery Last? 

You’ll rarely need to change the battery under normal carry use. Even set on max brightness, the long-life CR2032 will last 1-2 years. At medium brightness with MOTAC, we’ve seen batteries last over 3 years.

Expect 1+ years of battery life before considering a change. And remember, with MOTAC, you won’t use maximum brightness all the time. Advanced settings like MOTAC are why we love modern optics.

What Size is the Reticle? 

Reticle size is measured in Minute of Angle (MOA). Zeroing your sights will give you an accurate point of aim at your target up to your specific MOA setting.

PIX-4 uses 3 MOA, which means 1 inch on your sight equals 3 inches on your target at 100 yards. For everyday carry, 3 MOA is ideal because it provides precision without sacrificing speed.

3 MOA allows you to: 

  • Hit your target accurately out to 25-50 yards
  • Draw and shoot quickly 
  • See the reticle easily at any brightness level
  • Stay fast without picking your reticle off target during rapid fire

Features

  • 3 MOA dot. Bright enough to see easily without taking shots offline. Small enough to be precise at longer distances.
  • MIL-STD-19214 compliant housing. Constructed of lightweight, yet durable forged aluminum. 
  • Precision aspherical lens. Field of View (110′ at 25 yards). 
  • Broad color spectrum brightness levels. Optimize visibility in different lighting conditions, including low-light and bright daylight.
  • Low deck height profile. Allows co-witnessing of standard iron sights. Never lose sight of your target, even if your optic fails.
  • Military-spec, moisture-proof construction. Endure the elements; sealed against dust and water.
  • Reverse slide groove. Maintain proper slide lock-up & alignment. Slide will stay securely closed when holstered. 
  • Multiple reticle configurations available. Choose between 3 MOA red dot, circle-dot, or other patterns.

GritrOutdoors is an authorized Sig Sauer dealer

Details

Activity: Hunting
Color: Black
Finish: Anodized
Firearm Fit: Sig Sauer P365
Model: ROMEO-X
Product Type: Reflex Sights
Reticle Size: 3 MOA Dot
Magnification: 1x
Compatible Accessories: 46552
Nature Taxonomy: No FFL Shipping

Product Reviews

  • 5

    Romeo X

    Posted by Mike K on Jul 28th 2025

    Installed this on my xmacro and it's been great. I've put about 500 rounds through it with no issues, really solid optic.

  • 5

    Great pistol optic

    Posted by Vince on May 1st 2025

    The dot is crisp, the glass is clear, and the control layout is straightforward. The low deck height is a great touch, and I like the rear sight built directly into the optic. Overall, awesome pistol optic. Just wish it came in green

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