Sig Sauer Electro-Optics SORX1670 Romeo-X Sig-Loc Compact Black 1x24mm Illuminated Green Circle w/Dot Reticle RX Footprint Mount

The Sig Sauer Romeo-X Sig-Loc Compact is a 1x24mm pistol red dot engineered around a proprietary mounting system that redefines how optics lock onto your slide. Unlike the industry standard footprint, Sig-Loc establishes five points of contact between optic and slide—eliminating zero shift from recoil and hard use. If you're running a modern duty or carry pistol and want rock-solid performance without the bulk, this compact sight delivers the kind of ruggedness you expect from Sig's Electro-Optics line.

What sets the Romeo-X apart is its bottom-mounted design, which stretches the focal length and dramatically cuts parallax and reticle distortion. That longer sight picture makes for incredibly forgiving shooting, even during dynamic presentations. The 7075 aluminum housing is fully sealed and paired with distortion-free aspherical glass—no compromises on optical clarity or durability. At 0.94 inches tall, it clears standard-height iron sights for true co-witness, so you're never sacrificing backup aiming capability.

Battery life runs 20,000 hours on a single CR1632 (side-load for easy swaps), and you get 15 illumination settings—12 for daylight shooting and 3 dedicated night vision modes—all controlled via Motion Activated Illumination (MOTAC) to preserve battery between range trips. The sight tracks true across an 80 MOA elevation and windage range, and it's sealed to IPX-7 waterproofing so you don't have to baby it in the field. Built in the USA and backed by Sig's Infinite Guarantee.

The green circle-dot reticle gives you a fine aiming point inside a wider acquisition circle—a proven combination for both precision and speed. This is the Compact variant on the RX Sig-Loc footprint, so confirm your slide is cut for that standard before ordering.

Key Features

• SIG-LOC five-point mounting system locks optic to slide with industry-leading rigidity
• Bottom-mounted design increases focal length, reducing parallax and reticle distortion
• 0.94-inch height permits co-witness with standard iron sights
• 7075 aluminum body, fully sealed optical system, distortion-free aspherical lens
• Green illuminated circle-dot reticle for acquisition and precision
• 15 brightness levels (12 day, 3 night vision modes) with MOTAC auto-shutoff
• 20,000-hour battery life on CR1632
• 80 MOA elevation and windage adjustment range
• IPX-7 waterproofing
• Assembled in USA, backed by Infinite Guarantee

Specifications

Frequently Asked Questions

What slide cuts does the Romeo-X Sig-Loc Compact fit?

The Romeo-X mounts on the RX Sig-Loc footprint—a proprietary Sig Sauer standard. Confirm your pistol's slide is cut for the RX Sig-Loc before purchasing. This is not the standard Picatinny or DeltaPoint Pro footprint.

Will this sight co-witness with my iron sights?

Yes. At 0.94 inches tall, the Romeo-X Compact sits low enough to permit true co-witness with standard-height iron sights, preserving your backup aiming capability.

How long does the battery last?

The CR1632 battery delivers 20,000 hours of runtime. The sight features MOTAC (Motion Activated Illumination), which shuts the sight down when stationary, extending battery life between range trips and carry.

What reticle options are available?

This model ships with a green illuminated circle-dot reticle. The Romeo-X Sig-Loc Compact is also available with a 3 MOA red dot, 6 MOA red dot, or circle-dot in red.