SIG SauerRed Dot Sight
SIG Sauer ROMEO4XT-PRO Red Dot Sight Quad Ballistic Circle Dot FDE
- Quad Ballistic Circle Dot reticle (multi-mode)
- Fully enclosed tube-style design
- MOTAC; 9 day / 3 NV settings
- AAA battery, up to 50,000 hours
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 ROMEO4XT-PRO in Flat Dark Earth Red Dot Sight is a fully enclosed, tube-style rifle 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. The 'XT' adds the Quad Ballistic Circle Dot reticle for maximum aiming flexibility.
Switch between a clean 2 MOA dot, a circle-dot and holdover references on the fly. SIG's MOTAC motion activation and a single AAA battery deliver up to 50,000 hours, and it ships with flip covers, an anti-reflection device and a spacer kit for the right co-witness height.
Finish: Flat Dark Earth — also available in ROMEO4XT-PRO red dot sight in Black.
How it compares
Prefer the standard Ballistic Circle Dot reticle? See the ROMEO4T-PRO FDE. Want a wide-window enclosed optic? The ROMEO8T. Browse the ROMEO red dot range, all enclosed-emitter red dot sights and optics for AR-15 rifles.
Ideal for
- AR-platform and straight-pull rifles
- Practical rifle and 3-Gun competition
- Airsoft and training rifles
- Shooters who want multiple selectable reticle modes
Key features
- Quad Ballistic Circle Dot reticle (multi-mode)
- Fully enclosed tube-style design
- MOTAC; 9 day / 3 NV settings
- AAA battery, up to 50,000 hours
- 7075-T6 aluminium, IPX8; spacer kit included
| Magnification | 1x (non-magnified) |
| Objective | 20 mm |
| Reticle | Quad Ballistic Circle Dot (red), 2 MOA dot |
| Click Value | 0.5 MOA per click |
| Adjustment Range | 100 MOA W&E |
| Battery | AAA (up to 50,000 h), MOTAC |
| Housing | 7075-T6 aluminium, IPX8 |
| Finish | Flat Dark Earth |
| Weight | ~7.4 oz (210 g) |
| MPN / UPC | SOR44002 / 798681661541 |
What is the Quad Ballistic Circle Dot reticle on the SIG Sauer ROMEO4XT-PRO?
A multi-mode reticle with a 2 MOA dot plus circle and holdover elements you can switch between for speed or longer-range holds.
What is the difference between the SIG Sauer ROMEO4XT-PRO and the ROMEO4T-PRO?
The SIG Sauer ROMEO4XT-PRO uses the Quad Ballistic Circle Dot reticle, while the ROMEO4T-PRO uses the standard Ballistic Circle Dot reticle.
What battery does the SIG Sauer ROMEO4XT-PRO use?
The SIG Sauer ROMEO4XT-PRO runs on a single AAA battery — inexpensive and widely available — for up to 50,000 hours.
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.