Sig Sauer – ROMEO-RS PRO Red Dot Sight (Steel-Reinforced)

The Sig Sauer ROMEO-RS PRO delivers premium pistol-mounted red dot performance with the durability of a reinforced steel chassis—at a price competitive with high-end iron sights. Engineered, tested, and assembled in Tualatin, Oregon, this optic combines a rugged metal-reinforced frame, distortion-free aspheric glass, and long-life point-source LED technology for a crystal-clear, dependable aiming solution.

Designed around modern striker-fired pistol construction, the ROMEO-RS PRO integrates a skeletonized steel core molded into a high-strength polymer housing. Strategic metal inserts enhance slide-mount durability, reinforce the windage/elevation adjustments, and ensure precise, repeatable zero retention—even under heavy recoil or daily carry conditions.

A side-load battery tray allows quick replacement without removing the optic from the slide, preserving zero. The ambidextrous side-mounted brightness control sits flush within the housing to prevent accidental activation, while SIG’s updated mounting footprint provides compatibility with industry-standard PRO-cut slides and added steel recoil pins for rock-solid lock-up.

Key Features

• Reinforced hybrid steel chassis molded into a high-strength polymer housing
• Molded glass aspheric lens for a distortion-free sight picture
• High-efficiency LED emitter with 8 brightness settings
• Large, recessed side control button for easy illumination adjustments
• Side-mounted CR1632 battery tray; maintain zero during battery swaps
• 20,000+ hours runtime (medium setting, dot-only)
• MOTAC motion-activated illumination for extended battery life
• Updated footprint with steel recoil pins for maximum slide lock-up strength
• Designed, developed, tested, and assembled in the USA
• Fully backed by SIG SAUER’s Infinite Guarantee™

Compatibility

• Fits optic-ready SIG P320, P226 & P229 pistols with the PRO-cut slide
• Not compatible with original ROMEO1-cut pistols
• For optic-ready P365 models, use the ROMEO-RS COMPACT variant

The ROMEO-RS PRO is ideal for duty pistols, EDC builds, defensive training, and preparedness-oriented shooters who demand durability, clarity, and true zero retention under real-world use.