Description
SIG SAUER ROMEO-X Enclosed Pro Circle-Dot
The SIG SAUER ROMEO-X Enclosed Pro SORX1300 combines a protected emitter, rugged construction and a fast circle-dot aiming system in a low-profile pistol optic. This exact black model uses the PRO mounting footprint associated with SIG P320 and DeltaPoint Pro-pattern optic cuts. Its 1x sight picture keeps the target visible with both eyes open, while the fully enclosed optical system helps prevent dust, rain, lint and field debris from blocking the emitter. It is built for compatible duty-size, defensive and training pistols where a durable aiming solution is a priority.
Selectable Circle-Dot Reticle
The red reticle combines a precise 2 MOA center dot with a highly visible 32 MOA outer circle. The circle gives the eye a large reference to acquire during presentation and close-range transitions, while the center dot provides a finer point for deliberate shots. This balance makes the sight useful across varied distances without increasing optical magnification.
Fifteen illumination settings cover changing environments, with 12 daylight levels and three night-vision-compatible levels. Independent side controls allow brightness adjustments without obscuring the viewing window. D.A.R.C. specialized coatings and settings are optimized for use with compatible Gen 3+ night-vision equipment.
Motion and Holster-Aware Power Management
SIG SAUER’s MOTAC motion-activated illumination turns the reticle on when the optic senses movement and powers it down during inactivity. MAGNETAC can work with a compatible magnetic holster to switch the optic off when holstered and return it to the last setting when drawn. These systems help manage energy while keeping the sight ready for normal use.
The optic uses one CR1632 battery and is rated for up to 20,000 hours of runtime at a medium brightness setting. Its threaded, side-mounted battery compartment permits cell replacement without removing the optic from the slide, helping preserve the installed zero and avoiding the remounting required by bottom-loading designs.
Sealed 7075 Aluminum Construction
The housing is CNC-machined from 7075 aluminum and surrounds a fully enclosed, sealed and argon-purged optical system. Glass protects both sides of the emitter path, reducing exposure to the contaminants that can interrupt an open-emitter sight. The housing carries an IPX-7 waterproof rating, supporting use around rain, moisture and routine outdoor conditions.
A distortion-free aspherical lens helps provide a natural sight picture through the 24mm clear aperture. SpectraCoat anti-reflection treatment improves visible-light transmission and limits unwanted surface reflections. The adjustment mechanism uses SIG SAUER’s beryllium-copper flexure-arm design for durable windage and elevation control under pistol recoil and regular handling.
PRO Footprint and Low Deck Height
SORX1300 measures approximately 1.83 inches long, 1.23 inches wide and 0.94 inch high. It weighs about 1.2 ounces with the battery installed. The PRO/DeltaPoint Pro-pattern interface is intended for compatible full-size optics-ready pistols. Because slide cuts and screw specifications vary, confirm the firearm manufacturer’s fit guide, required fasteners and any necessary adapter plate before installation.
The ultra-low deck height is designed to make standard-height iron-sight co-witness possible on compatible pistols. The exact relationship between the optic and irons still depends on slide depth and sight geometry, so the mounted system should be inspected and tested rather than assumed.
Key Features
- Exact model: SORX1300, UPC 798681702107
- Finish: Black
- Reticle: Red 2 MOA center dot with 32 MOA circle
- Magnification and aperture: 1x with 24mm clear aperture
- Footprint: PRO/DeltaPoint Pro pattern
- Housing: CNC-machined 7075 aluminum
- Optical system: Fully enclosed, sealed and argon-purged
- Illumination: 15 settings, including three night-vision settings
- Adjustment: 1 MOA clicks; 70 MOA elevation and 65 MOA windage travel
- Battery: Side-loading CR1632
- Runtime: Up to 20,000 hours at a medium setting
- Dimensions: 1.83 x 1.23 x 0.94 inches
- Weight: Approximately 1.2 ounces with battery
- Environmental rating: IPX-7 waterproof
Built for a Compatible Full-Size Pistol
The ROMEO-X Enclosed Pro offers the environmental protection of a closed-emitter design without giving up the low height or intuitive aiming reference expected from a pistol red dot. The circle-dot reticle, motion management, side battery access and durable aluminum body create a practical package for a compatible carry, duty or range pistol. Install the sight according to the optic and firearm manufacturers’ instructions, verify screw length and torque, and confirm zero with the intended ammunition before use.




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