The SIG Sauer ROMEO5XDR Gen II is a compact 1x carbine red dot with a versatile selectable dual reticle — switch between a precise 2 MOA dot and a 65 MOA circle-dot for fast acquisition. It's a great-value, durable optic for AR-15s and carbines.
MOTAC motion-activated illumination delivers up to 50,000 hours from a common AAA battery, and it ships with both an absolute co-witness and a low mount.
How It Compares
Want a simple 2 MOA dot instead of dual reticle? See the standard ROMEO5 family in the SIG ROMEO range. Browse all rifle red dots and build via AR-15 optics. Learn the line in our SIG ROMEO guide.
Ideal For
- AR-15s and carbines
- Home defence and range use
- Shooters who want a selectable dot/circle-dot
Key Features
- Selectable 2 MOA dot or 65 MOA circle-dot
- MOTAC motion-activated illumination
- AAA battery, up to 50,000 hours
- 10 daylight + 2 night-vision settings
- CNC aluminium housing, IPX7
- Absolute co-witness + low mount included
Technical Specifications
| Magnification |
1x |
| Objective |
20 mm |
| Reticle |
2 MOA dot / 65 MOA circle-dot (red) |
| Adjustment Range |
100 MOA W/E |
| Illumination |
10 day / 2 NV, MOTAC |
| Battery |
AAA — up to 50,000 hours |
| Housing |
CNC aluminium, IPX7 |
| Weight |
6.4 oz |
| Mount |
Integrated Picatinny (two heights included) |
| Warranty |
SIG Infinite Guarantee |
What's Included
- SIG ROMEO5XDR Gen II red dot
- Absolute co-witness mount + low mount
- AAA battery, adjustment tool, 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
What is the dual reticle?
You can select either a clean 2 MOA dot for precision or a 65 MOA circle-dot for fast acquisition.
What battery does it use?
A single common AAA, for up to 50,000 hours with MOTAC.
Does it co-witness on an AR-15?
Yes — it ships with both an absolute co-witness and a low mount.
