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

The Sig Sauer ROMEO-X Enclosed PRO is a fully enclosed pistol red dot sight designed for full-size pistols with a DeltaPoint Pro footprint. The sealed, argon-filled optical system protects the emitter against dirt, moisture, and fogging, while the 7075 aluminum housing, low-profile design, aspherical lens, and Red Circle Dot reticle provide a durable and reliable solution for everyday carry, duty use, and intensive training.

Fully Enclosed Design Without Weak Points

The ROMEO-X Enclosed PRO features a fully sealed and argon-purged optical system that helps protect the emitter and lenses against dust, sweat, rain, and rapid temperature changes. The rugged 7075 aircraft-grade aluminum housing delivers outstanding durability even under demanding conditions.

Red Circle Dot for Fast Target Acquisition

The Red Circle Dot version combines a precise 2 MOA dot with a 32 MOA circle for rapid sight alignment and improved target acquisition. Circle Dot models allow switching between dot-only, circle-only, and combined reticle modes. The sight offers 15 brightness settings, including 12 daylight levels and 3 night vision-compatible modes for use in bright light, low light, and with NV devices.

Low-Profile Design and Side Battery Access

The low-profile construction allows co-witnessing with standard-height iron sights. The side-mounted CR1632 battery can be replaced without removing the optic from the slide, eliminating the need for reinstallation or re-zeroing. A patent-pending beryllium copper flexure arm system helps maintain consistent zero and reliable performance.

PRO Footprint for Full-Size Pistols

The PRO version is designed for pistols and mounting systems using the DeltaPoint Pro footprint, including platforms such as the P320. Compared to the Compact version, it is optimized for larger slides and duty or competition pistols where a more durable enclosed optic and highly visible reticle are preferred.

Smart Features for Everyday Use

MOTAC technology automatically powers down the illumination when no movement is detected and instantly reactivates the sight when motion resumes. Battery life reaches up to 20,000 hours at medium brightness settings when using the dot-only reticle. The optic offers 15 brightness levels, including 3 settings compatible with Gen 3+ night vision devices.

Benefits You Need to Know About:

• Fully enclosed and sealed optical system
• Argon-purged construction to prevent fogging
• 7075 aircraft-grade aluminum housing
• Aspherical lens for a distortion-free image
• Red Circle Dot reticle with 2 MOA dot and 32 MOA circle
• Selectable dot-only, circle-only, and combined reticle modes
• MOTAC motion-activated illumination system
• Side-mounted CR1632 battery replacement without optic removal
• Up to 20,000 hours of battery life at medium settings
• 15 brightness settings including 3 night vision modes
• Low-profile design for co-witness capability
• DeltaPoint Pro footprint compatibility