SIG Sauer ROMEO4XT-PRO Red Dot Sight Quad Ballistic Circle Dot Black
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The SIG Sauer ROMEO4XT-PRO, part SOR44001, is a fully enclosed 1x20mm rifle red dot in black, running the Quad Ballistic Circle Dot reticle from a single AAA battery.
A tube with glass at both ends has no open channel for rain, mud or grit to sit in. That, and a battery you can buy in any village shop, is what makes this a sight you stop thinking about.
The reticle centres on a 2 MOA dot within SIG's Ballistic Circle Dot layout, with the Quad version offering selectable patterns for speed or holdover. There are nine daytime brightness settings and three for night vision, adjustment is 0.5 MOA per click, and total travel is 100 MOA in elevation and 100 MOA in windage. The sight is rated IPX8 and weighs 7.4 oz, and a spacer kit is supplied so the deck height can be set to suit the rifle.
MOTAC motion activation is what turns the single AAA into a 50,000-hour figure: the sight sleeps when the rifle is still and lights the instant it moves, so it is effectively always on without being always drawing. If you want the simpler reticle in the same housing, that is a different model rather than a menu setting — the reticle set is fixed at purchase.
It mounts to a Picatinny rail on the supplied hex-bolt mount, with the spacer kit setting how high the sight sits over the receiver — our optic mount height guide covers what that choice does to your head position. The same sight is made in Flat Dark Earth, and for the standard Ballistic Circle Dot reticle rather than the Quad set there is the ROMEO4T-PRO.
| Magnification | 1x, non-magnified |
|---|---|
| Objective | 20 mm |
| Reticle | Quad Ballistic Circle Dot, 2 MOA centre dot, red |
| Illumination | 9 daytime settings, 3 night-vision settings, MOTAC |
| Adjustment | 0.5 MOA per click |
| Adjustment range | 100 MOA elevation, 100 MOA windage |
| Battery | One AAA cell, up to 50,000 hours |
| Water resistance | IPX8 |
| Weight | 7.4 oz |
| Finish | Black |
| Supplied | Spacer kit |
| Brand | SIG Sauer |
| MPN | SOR44001 |
Sealed glass, a supermarket battery and a reticle you can change your mind about mid-course. Order the ROMEO4XT-PRO today — imported from the USA with all duties paid by us and dispatched tracked from the UK in 7–10 business days, with nothing to pay on delivery.
Explore more: Enclosed Red Dot Sights, ROMEO4T-PRO or browse all SIG Sauer.
| Brand | SIG Sauer |
|---|---|
| Part no. | SOR44001 |
| Category | Red Dot Sight |
| Barcode | 798681661534 |
£5 tracked UK delivery on every order via Royal Mail Tracked 24. Our products are ordered in from the manufacturer rather than held in UK stock, so please allow 7 to 10 business days (Monday to Friday, excluding bank holidays) from the date of your order for it to reach you. Tracking details are emailed on dispatch. UK delivery only.
You have 30 days from receiving your order to cancel it for any reason, then 14 days to send it back unused and in its original packaging. Faulty, damaged or incorrect items are replaced or refunded and we cover reasonable return postage. Refunds go back to your original payment method within 14 days of receiving the return.
7 to 10 business days from the date of your order. Every order is sent Royal Mail Tracked for a flat £5 and you receive tracking details by email when it is dispatched.
Yes. We list only genuine parts and optics from the brands shown, ordered in from the manufacturer for your order.
Compatibility notes on this page come from the manufacturer. If you are unsure, email us with your make and model before ordering and we will check rather than guess.
Yes. Bundle & Save applies automatically in your basket: 5% off when you buy 2 items, 10% off at 3 items and 15% off at 4 or more. It works across the whole range, so you can mix and match, and there is no code to enter.
Yes — you have 30 days from delivery to cancel for any reason, as long as the item is unused and in its original packaging. See our returns policy for the details.
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