SIG Sauer
SIG Sauer ROMEO4XT-PRO Red Dot Sight Quad Ballistic Circle Dot Black – SOR44001
£679.99
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In stockSKU: SOR44001
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UK DispatchShipped from the UK
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Genuine ProductsAuthorised UK retailer
Free UK shipping on all orders. Estimated delivery within 7–10 business days. 30-day returns on unused items in their original packaging.
Covered by the manufacturer's warranty. Contact our UK support team for any warranty assistance.
A UK-based specialist retailer of premium optics and tactical gear from trusted global brands — with no import fees and secure checkout.
Description
The SIG Sauer ROMEO4XT-PRO 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: Black — also available in Flat Dark Earth.
How It Compares
Prefer the standard Ballistic Circle Dot reticle? See the ROMEO4T-PRO. Want a wide-window enclosed optic? The ROMEO8T. Browse the SIG ROMEO range, all enclosed red dot sights and AR-15 optics.
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
Technical Specifications
| Magnification | 1x |
| Objective | 20 mm |
| Reticle | Quad Ballistic Circle Dot (red), 2 MOA dot |
| Click Value | 0.5 MOA |
| Adjustment Range | 100 MOA W&E |
| Battery | AAA (up to 50,000 h), MOTAC |
| Housing | 7075-T6 aluminium, IPX8 |
| Finish | Black |
| Weight | ~7.4 oz |
| MPN / UPC | SOR44001 / 798681661534 |
| Warranty | SIG Infinite Guarantee |
What's Included
- SIG ROMEO4XT-PRO red dot sight
- Hex-bolt mount, spacer kit, AAA battery, flip covers, anti-reflection device, 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's the Quad Ballistic Circle Dot reticle?
A multi-mode reticle with a 2 MOA dot plus circle and holdover elements you can switch between for speed or longer-range holds.
4XT-PRO or 4T-PRO?
The XT has the quad reticle; the 4T-PRO uses the standard Ballistic Circle Dot.
What battery does it use?
A single AAA — inexpensive and widely available — for up to 50,000 hours.
Why buy from Xtreme Tactical
UK-Based Retailer
Dispatched from the UK.
No Import Fees
Order without overseas customs or surprises.
Secure Checkout
Protected payment options on every order.
Specialist Support
Expert product knowledge when you need it.
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