Sig Sauer ROMEO1 PRO 3 MOA Red Dot Sight – Flat Dark Earth
Compact, rugged, and purpose-built for fast, precise target acquisition, the Sig Sauer ROMEO1 PRO brings match-grade performance to defensive carry and competition handguns alike. Finished in a factory Flat Dark Earth (FDE) anodized/Cerakote that complements today’s most popular slide finishes, this optic combines a crisp 3 MOA red dot with Sig’s proven MOTAC motion-activated illumination, all in a lightweight 7075-T6 aluminum housing. With an MSRP of $549.99 and serial number 99Z001706MMG laser-etched on the underside and matching block OP-99Z001706, this is a high-value accessory that adds instant capability to any pistol cut for the Sig “Pro”/Deltapoint Pro footprint.
Condition
Excellent – This sight shows only minimal evidence of handling or installation. Lens coatings remain clear and free of scratches, the emitter is spotless, and the FDE finish is uniform with no discoloration or edge wear. Mechanically and electronically sound, it tracks elevation and windage adjustments positively and holds zero as designed.
What’s Included
• Factory steel protective shroud (pre-installed)
• Two T15 Torx mounting screws with pre-applied threadlocker
• Black hard-polymer sight cover
• Original underside serial matching paperwork for verification
Originally engineered for the P320 X-Series but equally at home on any slide milled to the Sig Sauer Pro/DPP pattern, the ROMEO1 PRO extends the window height for an uncluttered sight picture and employs Sig’s TruHold dual-spring adjustment system to resist recoil-induced shift. The circle-round aspherical lens provides edge-to-edge clarity, while 12 brightness settings (10 daylight, 2 night-vision) ensure the 3 MOA dot stays visible from bright backdrops to low-light environments. The top-mounted battery tray accepts a common CR1632 cell and can be changed without removing the optic or re-zeroing—one of the handiest upgrades over earlier ROMEO1 units.
Pair the included steel shroud with the already hard-anodized body and you have a sight built to survive prolonged holster carry, slide-ride reciprocation, and the inevitable bumps of field use. At just 1 oz (sight only), it adds negligible weight while delivering a measurable boost in speed and accuracy, especially beyond typical iron-sight distances.
If you’ve been waiting for a clean, lightly-used ROMEO1 PRO in FDE, this example checks every box—condition, completeness, and the desirable 3 MOA dot size. It’s ready to mount, zero, and run.