The SIG Sauer ROMEO-X Compact Red Dot Sight is a premium open-reflex red dot sight for slim carry pistols on the RMSc footprint — purpose-fit for the SIG P365 family and other RMSc-cut handguns. A distortion-free aspherical lens and low deck height give a clean, co-witnessable sight picture.
It offers a selectable 2 MOA dot / 32 MOA circle reticle, MOTAC + MAGNETAC activation, 15 brightness settings (3 night-vision), a side-loading CR1632 tray, and IPX7 sealing.
How It Compares
Larger pistol? The ROMEO-X Pro uses the DeltaPoint Pro footprint. It fits the slim RMSc-footprint red dot sights — confirm your slide cut in our RMR vs RMSc guide. Browse the ROMEO red dot range and all optics for optics-ready pistols. Carry setup? See Glock MOS optic fitting guide.
Compatibility
RMSc (Shield) footprint — SIG P365 family, plus SIG-listed direct fit on Glock 43X/48, Springfield Hellcat/Hellcat Pro, S&W Shield Plus/Equalizer, Taurus TX22, Canik Mete MC9 and FN Reflex. Confirm slide cut and screws before ordering.
Ideal For
- Slim, optics-ready pistols with an RMSc slide cut
- Airsoft, training and licensed pistol setups
- Pistol-calibre carbines and long-barrelled pistols
- Shooters who want a slim optic with a large window
Key Features
- Selectable 2 MOA dot / 32 MOA circle / circle-dot
- RMSc footprint for compact carry pistols
- Distortion-free aspherical lens, low deck height
- MOTAC + MAGNETAC activation; 15 settings (3 NV)
- Side-loading CR1632 tray; 7075 aluminium, IPX7
Technical Specifications
| Magnification |
1x (non-magnified) |
| Aperture |
24 mm |
| Reticle |
2 MOA dot / 32 MOA circle (red) |
| Brightness |
15 (12 day / 3 NV), MOTAC |
| Battery |
CR1632 (side-loading), ~20,000 h |
| Footprint |
RMSc (Shield) |
| Housing |
7075 aluminium, IPX7 |
| Weight |
~1.0 oz (28 g) |
| SKU / MPN / UPC |
SORX1200 / SORX1200 / — |
What's Included
- SIG ROMEO-X Compact red dot sight
- Mounting screw kit, T6 & T10 Torx wrenches, CR1632 battery, manual
UK Delivery & Support
UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and SIG's Infinite Guarantee.
Frequently Asked Questions
Which pistols does the SIG Sauer ROMEO-X Compact fit?
The SIG Sauer ROMEO-X Compact uses the RMSc footprint, so it fits RMSc-cut slides such as the SIG P365 family, Glock 43X/48, Hellcat and Shield Plus. Confirm your slide cut before ordering.
Is the SIG Sauer ROMEO-X Compact an open or enclosed red dot sight?
This is open-emitter; for a sealed M17/M18 optic see the ROMEO-M17.
Does the SIG Sauer ROMEO-X Compact co-witness?
The low deck height of the SIG Sauer ROMEO-X Compact supports co-witness with standard-height iron sights on compatible pistols.
What battery does the SIG Sauer ROMEO-X Compact use?
The SIG Sauer ROMEO-X Compact runs on a CR1632 cell (side-loading), ~20,000 h.
