Sig Sauer® ROMEO-X Enclosed Compact Reflex Sight / Red Circle Dot

The Sig Sauer ROMEO-X Enclosed Compact is a fully enclosed pistol red dot sight designed for the P365 platform and handguns using the Shield RMSc footprint. Its sealed 7075 aluminum housing protects the optic from moisture, dirt, sweat, and harsh conditions, while the low-profile design supports co-witness capability with standard-height iron sights. The Circle Dot reticle combines a precise 2 MOA dot with a 32 MOA circle for fast target acquisition in defensive, duty, and training applications.

Fully Enclosed Optical System

The ROMEO-X Enclosed Compact features a sealed, argon-purged optical system designed to resist internal fogging during rapid temperature changes and adverse weather conditions. The aspheric lens delivers a clear sight picture with minimal distortion, while the durable housing protects the emitter from external contamination. Sig Sauer also incorporates a patented beryllium-copper flexure system that helps maintain long-term durability and allows for an exceptionally low mounting height.

Circle Dot Reticle and Adjustable Brightness

The optic allows the user to switch between a 2 MOA dot, 32 MOA circle, or combined Circle Dot reticle depending on preference and shooting application. Fifteen brightness settings, including dedicated night vision modes, allow the sight to adapt to varying light conditions and use with NV devices.

MOTAC Motion Activation

Sig Sauer’s MOTAC technology automatically powers the optic down during inactivity and instantly reactivates illumination when motion is detected. Depending on brightness settings and usage mode, battery life can reach up to 20,000 hours.

Side-Loading Battery and Low Mounting Height

The CR1632 battery is loaded from the side, allowing replacement without removing the optic or losing zero. The compact low-profile design is optimized for slim pistol slides and supports co-witness capability with standard-height iron sights.

Designed for P365 and Shield RMSc Footprints

The ROMEO-X Enclosed Compact is designed for direct compatibility with the Sig Sauer P365 series and pistols using the Shield RMSc mounting standard. Its compact dimensions maintain a streamlined handgun profile suitable for concealed carry and duty use.

Benefits You Need to Know:

• Fully enclosed and sealed optical system
• 7075 aluminum housing
• Argon-purged construction
• Aspheric lens with minimal distortion
• Patented beryllium-copper flexure system
• 2 MOA dot and 32 MOA Circle Dot reticle
• Selectable dot, circle, or Circle Dot reticle modes
• 15 brightness settings including night vision modes
• MOTAC motion-activated illumination system
• Battery life up to 20,000 hours
• Side-loading CR1632 battery compartment
• Low-profile mounting with co-witness capability
• Compatible with P365 and Shield RMSc footprint pistols
• Suitable for concealed carry, duty, and training use