Sig Sauer Electro-Optics Sorx1530 Romeo-X Sig-Loc Pro Black Cerakote 1X 3 Moa Red Dot Reticle
The Sig Sauer Romeo-X SIG-LOC Pro is a 1x red dot sight engineered for shooters who demand rock-solid zero retention and a clean sight picture on pistols. Built on the SIG-LOC mounting system—a footprint inspired by the MIL-SPEC Romeo-M17 and proven in the field—this optic establishes five contact points between the slide and housing to lock down your zero through hard recoil and impacts. If you run a modern Sig-mounted pistol or another platform configured for SIG-LOC, this is the sight designed to stay put where you point it.
The longer focal length of the SIG-LOC design does real work: it cuts parallax and reticle distortion so your 3 MOA dot stays crisp across the field of view, even when your eye isn't perfectly centered. The black Cerakote finish and fully sealed, enclosed optical system handle harsh conditions—dust, water, and rough handling—without degrading your zero or sight picture. At 0.96 inches high, it co-witnesses with standard-height iron sights, giving you a reliable backup alignment in seconds. Motion Activated Illumination (MOTAC) keeps the battery alive longer; a single CR2032 lasts 20,000 hours, and 15 brightness levels—including three dedicated night vision—cover everything from full daylight to green-tinted low-light shooting.
Built with 7075 aluminum and distortion-free aspherical glass, this is a serious optic backed by Sig's Infinite Guarantee. Whether you're running it on a range gun, duty platform, or duty carry pistol, the Romeo-X SIG-LOC Pro delivers the uncompromising reliability and optical clarity that experienced shooters expect.
Key Features
- Five-point contact SIG-LOC mounting system for maximum zero stability under recoil and impact
- 3 MOA red dot reticle for quick target acquisition and precise aim
- Longer focal length minimizes parallax and reticle distortion across the field of view
- Motion Activated Illumination (MOTAC) extends battery life to 20,000 hours on a single CR2032
- 15 illumination settings—12 daylight levels plus 3 night vision modes
- 0.96-inch low deck height enables co-witnessing with standard iron sights
- Fully sealed, enclosed optics resist water (IPX-8), dust, and impact damage
- Rugged 7075 aluminum housing with black Cerakote finish
- Assembled in USA; backed by Sig Sauer's Infinite Guarantee
- 40 MOA elevation and 80 MOA windage travel for flexible zero adjustment
Specifications
| Magnification | 1x |
| Reticle | 3 MOA red dot |
| Mounting System | SIG-LOC PRO (RX footprint) |
| Objective Lens Diameter | 24 mm |
| Height | 0.96 in (24.38 mm) |
| Length | 1.9 in (48.26 mm) |
| Width | 1.24 in (31.50 mm) |
| Elevation Adjustment Range | 40 MOA total |
| Windage Adjustment Range | 80 MOA total |
| Illumination Modes | 15 (12 daytime + 3 night vision) |
| Battery | 1 × CR2032 |
| Battery Life | 20,000 hours |
| Waterproofing | IPX-8 |
| Finish | Black Cerakote |
| Housing Material | 7075 aluminum |
| Optics | Distortion-free aspherical glass lens; fully enclosed and sealed |
Frequently Asked Questions
Which pistols are compatible with the SIG-LOC Pro mounting system?
The Romeo-X SIG-LOC Pro is designed for Sig Sauer pistols configured with the SIG-LOC mounting footprint. Confirm your pistol model supports SIG-LOC before purchase. Note that SIG-LOC-configured slides remain compatible with traditional top-mount reflex sights if you decide to switch optics later.
Can I use this sight with standard iron sights?
Yes. At 0.96 inches high, the Romeo-X SIG-LOC Pro co-witnesses with standard-height iron sights, so you can use both in tandem for redundancy and quick backup alignment.
How long does the battery last, and what does it take to replace?
The CR2032 battery lasts 20,000 hours under typical use, and the sight features side-load battery access for quick replacement without removing the optic from your pistol.
What reticle options are available?
The Romeo-X SIG-LOC Pro is available with a 3 MOA red dot, a 6 MOA red dot, or a circle-dot reticle, depending on your preferred aiming style.

