SIG SauerRed Dot Sight
SIG Sauer ROMEO4T-PRO Red Dot Sight Ballistic Circle Dot FDE
- Ballistic Circle Dot reticle system (multi-mode)
- Fully enclosed red dot sight (tube-style design)
- MOTAC (Motion Activated Illumination) system
- AAA battery with up to 50,000 hours runtime
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-PRO Red Dot Sight in Flat Dark Earth is a fully enclosed, tube-style red dot sight built to the T-series standard — a rugged 7075-T6 aluminium housing, IPX8 waterproofing, and a sealed window that shrugs off rain, mud and dust. It is built for hard-use rifles where reliability is non-negotiable.
Its standout feature is the selectable Ballistic Circle Dot reticle: a 2 MOA centre dot with circle and holdover elements you can switch between for fast acquisition or longer-range holds. SIG's MOTAC motion activation and a single AAA battery deliver up to 50,000 hours of runtime, and it ships complete with flip covers, an anti-reflection device and a spacer kit for the right co-witness height. Dispatched from the UK, with tracked delivery in 7–10 working days.
Finish: Flat Dark Earth — also available in ROMEO4T-PRO red dot sight in Black.
Ideal for
- FDE and tan rifle builds
- AR-platform and straight-pull rifles
- Practical rifle and gallery rifle competition
- Shooters who want a selectable ballistic circle-dot reticle
Key features
- Ballistic Circle Dot reticle system (multi-mode)
- Fully enclosed red dot sight (tube-style design)
- MOTAC (Motion Activated Illumination) system
- AAA battery with up to 50,000 hours runtime
- 9 daylight + 3 night vision brightness settings
- 7075-T6 aluminium housing (T-series upgrade)
- IPX8 waterproof and fogproof
- Parallax-free with unlimited eye relief
| Magnification | 1× (non-magnified) |
| Objective Lens Diameter | 20 mm |
| Reticle | Ballistic Circle Dot (red), 2 MOA centre dot |
| Adjustment Increment | 0.5 MOA per click |
| Elevation / Windage Range | 100 MOA / 100 MOA |
| Parallax / Eye Relief | Parallax free / Unlimited |
| Illumination Settings | 9 Day / 3 Night Vision |
| Battery | AAA — up to 50,000 hours |
| Housing | 7075-T6 Aluminium, IPX8 |
| Finish | Flat Dark Earth |
| Weight | 7.4 oz (210 g) |
| Mount | Picatinny (Hex Bolt + Spacer System) |
| MPN / UPC | SOR44102 / 798681671403 |
What is the Ballistic Circle Dot reticle on the SIG Sauer ROMEO4T-PRO?
A selectable reticle with a 2 MOA centre dot plus circle and holdover elements, letting you switch between a clean dot for speed and added references for longer-range holds.
What battery does the SIG Sauer ROMEO4T-PRO use?
The SIG Sauer ROMEO4T-PRO runs on a single AAA battery — inexpensive and widely available — rated for up to 50,000 hours thanks to MOTAC motion activation.
Is the SIG Sauer ROMEO4T-PRO night-vision compatible?
Yes — the SIG Sauer ROMEO4T-PRO has 3 dedicated night-vision settings alongside 9 daylight levels.
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.