Sig Sauer Romeo-X Pro

Sig Sauer ROMEO-X Pro Circle Dot is an open-emitter pistol red dot sight using the DeltaPoint Pro footprint and designed for a very low mounting height on optics-ready pistols. This EAN version features a selectable Circle Dot reticle that can display a 2 MOA dot, a 32 MOA circle or both together. The user can therefore choose between a precise small aiming point and a large, quickly acquired circle.

The housing is CNC-machined from 7075 aluminium, and the optic uses an aspherical glass lens designed to reduce image distortion. The ROMEO-X Pro has an exceptionally low deck height, which according to SIG can allow co-witnessing with standard-height iron sights in suitable pistol configurations.

MOTAC motion sensing switches the illumination off when the sight remains stationary and reactivates it when movement is detected. There are 15 brightness settings in total, with 12 for daylight use and 3 for night vision. The CR1632 battery is replaced from the side without removing the optic, and SIG specifies up to 20,000 hours of battery life.

The ROMEO-X Pro uses the DeltaPoint Pro / SIG Pro mounting standard. Footprint compatibility is important to check before purchase because the ROMEO-X Pro and the smaller ROMEO-X Compact do not use the same mounting pattern. The Pro version is intended for P320-size optic cuts and DPP-compatible installations. SIG also specifies that this model is rated for the recoil of 10 mm Auto pistols.

IPX7 protection, 1x magnification and unlimited eye relief support pistol use in changing conditions. Total adjustment travel is 80 MOA in both elevation and windage, and the manufacturer's stated weight is approximately 32.6 g.

Sig Sauer ROMEO-X Pro Circle Dot - Features:

• Product type: open-emitter pistol red dot sight
• Product number: SORX1000
• Magnification: 1x
• Reticle: selectable 2 MOA dot, 32 MOA circle or Circle Dot
• Footprint: DeltaPoint Pro / SIG Pro
• Housing material: 7075 aluminium
• Lens: aspherical glass lens
• Brightness settings: 15 total, 12 daylight and 3 NV
• Power saving: MOTAC motion sensing
• Battery: CR1632, side-loading
• Battery life: up to 20,000 hours
• Adjustment range: 80 MOA elevation and 80 MOA windage
• Protection: IPX7
• Weight: approx. 32.6 g
• Manufacturing: assembled in the USA

Sig Sauer ROMEO-X Pro Circle Dot is well suited to users who want a low-profile DPP-footprint pistol red dot and the ability to switch quickly between a 2 MOA dot, a 32 MOA circle and the combined Circle Dot reticle. The 7075 aluminium housing, MOTAC, side-loading battery and 15 brightness settings make it a versatile option for range, competition and demanding pistol use.

Product text updated 9.10.2026.