SIG SauerRed Dot Sight
SIG Sauer ROMEO4T Red Dot Sight 2 MOA Ballistic Circle Dot FDE
- Reticle
- Ballistic Circle Dot, 4 modes, red
- Dot / Circle
- 2 MOA dot inside a 65 MOA circle
- Power
- solar panel plus CR2032 battery, over 100,000 hours
- Illumination
- 12 settings (10 daylight / 2 night vision)
In stock — 7–10 business day delivery
Tracked delivery, estimated 7–10 working days
Want to know when it's back? Email us and we'll let you know
Multi-buy savings
Mix any optics and lights — applied automatically
- 5%2 items
- 10%3 items
- 15%4 or more
Applied automatically at checkout — no code needed. Accessories such as tailcaps, switches and mounts aren't included.
Complete your setup
- Shipped from the UK with tracked delivery
- 30-day returns on unused items
- Warranty support — contact us first
Delivery
Every order is shipped from the UK with tracked delivery. Estimated delivery time is 7–10 working days, and you will receive tracking details by email as soon as your order is on its way.
Returns
Unused items in their original packaging can be returned within 30 days. Email info@opticstrader.co.uk first and we will confirm the return details.
Warranty
Every product is new and boxed. If anything goes wrong, contact us first and we'll help with a manufacturer warranty claim where one applies.
The SIG Sauer ROMEO4T Red Dot Sight in FDE is a 1x (non-magnified) enclosed red dot sight with a 38 mm aperture and a Ballistic Circle Dot reticle in red offering four modes — a 2 MOA dot inside a 65 MOA circle — powered by solar panel plus CR2032 battery, finished in Flat Dark Earth.
Solar assistance is the distinguishing feature. In daylight the panel carries the load and the CR2032 is held in reserve, which is how the sight reaches its 100,000-hour-plus rating. It offers 12 brightness settings, ten for daylight and two for night vision.
Finish: FDE — also sold as the ROMEO4T red dot sight in Black.
How it compares
Want a lighter sight with a smaller window? The ROMEO4T-PRO in FDE weighs less. Want a CR123A-powered enclosed sight in the same colour? See the ROMEO8T in FDE. Browse the SIG ROMEO range and all enclosed red dot sights.
Ideal for
- Civilian Service Rifle and practical rifle shooting
- Straight-pull AR-15 and lever-release rifles
- Shooters who want minimal battery dependence
- Builds where an FDE optic matches the rifle furniture
Key features
- Reticle: Ballistic Circle Dot, 4 modes, red
- Dot / Circle: 2 MOA dot inside a 65 MOA circle
- Power: solar panel plus CR2032 battery, over 100,000 hours
- Illumination: 12 settings (10 daylight / 2 night vision)
- Turrets: 0.5 MOA per click; ±70 MOA adjustment range
- Finish: Flat Dark Earth
| Magnification | 1x (non-magnified) |
| Aperture | 38 mm |
| Reticle | Ballistic Circle Dot, 4 modes (red) |
| Dot / Circle | 2 MOA dot / 65 MOA circle |
| Click Value | 0.5 MOA per click |
| Adjustment Range | ±70 MOA |
| Power | Solar + CR2032 battery |
| Battery Life | Over 100,000 hours |
| Illumination | 12 settings (10 day / 2 NV) |
| Finish | FDE |
| SKU / MPN / UPC | SOR43131 / SOR43131 / 798681585939 |
What colour is the SIG Sauer ROMEO4T SOR43131?
The SIG Sauer ROMEO4T SOR43131 is finished in FDE (Flat Dark Earth); the same sight is also sold in black.
How is the SIG Sauer ROMEO4T powered?
The SIG Sauer ROMEO4T is powered by a solar panel with a CR2032 battery as backup, giving over 100,000 hours of rated life.
What reticle does the SIG Sauer ROMEO4T use?
The SIG Sauer ROMEO4T uses a Ballistic Circle Dot reticle in red with four selectable modes, built around a 2 MOA dot inside a 65 MOA circle.
Is the SIG Sauer ROMEO4T night-vision compatible?
Yes — the SIG Sauer ROMEO4T has 12 brightness settings, two of which are night-vision settings.
How is the SIG Sauer ROMEO4T adjusted for zero?
The SIG Sauer ROMEO4T adjusts in 0.5 MOA per click, with a total range of ±70 MOA.
Every order is shipped from the UK with tracked delivery, with an estimated delivery time of 7–10 working days. Unused items in their original packaging can be returned within 30 days for a full refund.