$529.99
Availability: In Stock
The Sig Sauer Romeo-X is a compact enclosed reflex sight built for shooters who demand durability without compromise. This 1x24mm red dot sight delivers a 3 MOA reticle in a footprint small enough for pistols, shotguns, and modern rifles—yet rugged enough to handle serious duty. Its fully sealed, argon-purged optical system and 7075 aluminum housing draw inspiration from mil-spec design, giving you confidence that your optic will survive hard use in the field or at the range.
What sets the Romeo-X apart is attention to the details that matter. The patent-pending beryllium copper flexure arm keeps the optic secure while the aspherical lens delivers a distortion-free sight picture across the 24mm clear aperture. Low deck height means you can co-witness with standard-height iron sights, preserving your backup aiming capability. Motion-activated illumination (MOTAC) stretches battery life to an impressive 20,000 hours at medium brightness, while 15 total illumination settings—including three tuned for night vision—let you dial in the perfect brightness for any lighting condition.
Adjustments are tactile and repeatable: 1 MOA per click with 70 MOA of windage and 65 MOA of elevation travel give you the range to dial in any setup. The side-load CR-1632 battery keeps the top of the sight clean and snag-free. At just 1.1 to 1.2 ounces depending on configuration, the Romeo-X adds almost nothing to your firearm. Built in the USA and sealed to IPX-7 water resistance, it's the kind of sight that gets lighter the more you trust it.
| Housing Material | 7075 Aluminum |
| Finish | Black |
| Clear Aperture Diameter | 24 mm |
| Lens Material | Glass |
| Lens Type | Aspheric |
| Reticle | 3 MOA Red Dot |
| Emitter Type | High-Efficiency Point Source LED |
| Brightness Settings | 15 (12 Day / 3 Night Vision) |
| Battery Type | CR-1632 |
| Battery Location | Side Load |
| Battery Life (Medium, Constant On) | 20,000 hours |
| Windage Adjustment Range | 70 MOA |
| Elevation Adjustment Range | 65 MOA |
| Adjustment Resolution | 1 MOA per click |
| Tactile Clicks | Yes |
| Adjustment Screw Type | T6 Torx |
| Water Resistance | IPX-7 |
| Mounting Footprint | DeltaPoint Pro (Pro) / Shield RMSc (Compact) |
| Overall Length | 1.62–1.83 in (41.15–46.48 mm) |
| Overall Height | 0.94 in (23.88 mm) |
| Overall Width | 1.23 in (31.24 mm) |
| Weight with Battery | 1.1–1.2 oz (31.19–34.02 g) |
| Origin | Assembled in USA |
This version comes with a DeltaPoint Pro footprint (Pro model) or Shield RMSc footprint (Compact model), so mounting compatibility depends on which variant you have. Check the specific model you're purchasing to confirm your slide is cut for that mount pattern.
Yes. The sight includes 3 dedicated night vision illumination settings (in addition to 12 day-mode settings), so you can dial in the right brightness for NV devices without washing out your image.
The 20,000-hour rating is based on constant-on operation at medium brightness. Motion-activated illumination (MOTAC) extends practical battery life significantly by powering down the reticle when the sight isn't moving, activating only when you need it.
Yes. The Romeo-X is designed with a low deck height that allows standard-height iron sights to co-witness, so you keep a backup aiming reference if your optic fails.
SKU: 144596661 • Width: 3.7in • Height: 2.4in • Depth: 5.4in • Weight: 0.265oz
Availability: In Stock
The Sig Sauer Romeo-X is a compact enclosed reflex sight built for shooters who demand durability without compromise. This 1x24mm red dot sight delivers a 3 MOA reticle in a footprint small enough for pistols, shotguns, and modern rifles—yet rugged enough to handle serious duty. Its fully sealed, argon-purged optical system and 7075 aluminum housing draw inspiration from mil-spec design, giving you confidence that your optic will survive hard use in the field or at the range.
What sets the Romeo-X apart is attention to the details that matter. The patent-pending beryllium copper flexure arm keeps the optic secure while the aspherical lens delivers a distortion-free sight picture across the 24mm clear aperture. Low deck height means you can co-witness with standard-height iron sights, preserving your backup aiming capability. Motion-activated illumination (MOTAC) stretches battery life to an impressive 20,000 hours at medium brightness, while 15 total illumination settings—including three tuned for night vision—let you dial in the perfect brightness for any lighting condition.
Adjustments are tactile and repeatable: 1 MOA per click with 70 MOA of windage and 65 MOA of elevation travel give you the range to dial in any setup. The side-load CR-1632 battery keeps the top of the sight clean and snag-free. At just 1.1 to 1.2 ounces depending on configuration, the Romeo-X adds almost nothing to your firearm. Built in the USA and sealed to IPX-7 water resistance, it's the kind of sight that gets lighter the more you trust it.
| Housing Material | 7075 Aluminum |
| Finish | Black |
| Clear Aperture Diameter | 24 mm |
| Lens Material | Glass |
| Lens Type | Aspheric |
| Reticle | 3 MOA Red Dot |
| Emitter Type | High-Efficiency Point Source LED |
| Brightness Settings | 15 (12 Day / 3 Night Vision) |
| Battery Type | CR-1632 |
| Battery Location | Side Load |
| Battery Life (Medium, Constant On) | 20,000 hours |
| Windage Adjustment Range | 70 MOA |
| Elevation Adjustment Range | 65 MOA |
| Adjustment Resolution | 1 MOA per click |
| Tactile Clicks | Yes |
| Adjustment Screw Type | T6 Torx |
| Water Resistance | IPX-7 |
| Mounting Footprint | DeltaPoint Pro (Pro) / Shield RMSc (Compact) |
| Overall Length | 1.62–1.83 in (41.15–46.48 mm) |
| Overall Height | 0.94 in (23.88 mm) |
| Overall Width | 1.23 in (31.24 mm) |
| Weight with Battery | 1.1–1.2 oz (31.19–34.02 g) |
| Origin | Assembled in USA |
This version comes with a DeltaPoint Pro footprint (Pro model) or Shield RMSc footprint (Compact model), so mounting compatibility depends on which variant you have. Check the specific model you're purchasing to confirm your slide is cut for that mount pattern.
Yes. The sight includes 3 dedicated night vision illumination settings (in addition to 12 day-mode settings), so you can dial in the right brightness for NV devices without washing out your image.
The 20,000-hour rating is based on constant-on operation at medium brightness. Motion-activated illumination (MOTAC) extends practical battery life significantly by powering down the reticle when the sight isn't moving, activating only when you need it.
Yes. The Romeo-X is designed with a low deck height that allows standard-height iron sights to co-witness, so you keep a backup aiming reference if your optic fails.
SKU: 144596661 • Width: 3.7in • Height: 2.4in • Depth: 5.4in • Weight: 0.265oz