SIG Sauer ROMEO4T-PRO Red Dot Sight Ballistic Circle Dot Black
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The SIG Sauer ROMEO4T-PRO, part number SOR44101, is a 1x enclosed red dot sight with a 20 mm objective and SIG's Quad Ballistic Circle Dot reticle built around a 2 MOA centre dot.
A circle-dot with ballistic holds under it, in a sealed body that weighs 6.3 oz — the ROMEO4T-PRO is the compact member of the ROMEO4 family rather than the big-window one.
The sight measures 62.5 x 67.5 x 50 mm and mounts to a Picatinny rail on SIG's half-inch hex system, which is supplied with two heights so the optic can be set to co-witness or to sit above the irons. Illumination runs from a CR2032 cell rated at 50,000 hours, with 9 daylight settings and 3 night-vision levels.
Zeroing is 0.5 MOA per click, with 100 MOA of elevation and 100 MOA of windage on tap, which is enough travel for an out-of-square rail or an offset mount. It suits Civilian Service Rifle, practical rifle and 3-Gun work, and a lightweight straight-pull build where the weight over the receiver is worth watching. We do not quote a housing material, sealing rating, parallax figure or eye relief for this model, because SIG do not publish them on the ROMEO4T-PRO page.
It fits any MIL-STD-1913 Picatinny rail through its own hex mount, which covers AR-pattern flat-tops, rail-equipped shotguns and straight-pull carbines. The same sight is stocked in FDE; the larger-aperture models are the ROMEO4T and the ROMEO4XT-PRO. Browse all enclosed red dot sights.
| Magnification | 1x (non-magnified) |
|---|---|
| Objective | 20 mm |
| Reticle | Quad Ballistic Circle Dot, red, 2 MOA centre dot |
| Brightness | 9 daylight / 3 night-vision settings |
| Adjustment | 0.5 MOA per click |
| Adjustment Range | 100 MOA elevation / 100 MOA windage |
| Battery | CR2032, up to 50,000 hours |
| Mount | Picatinny, half-inch hex with two heights |
| Dimensions | 62.5 x 67.5 x 50 mm |
| Weight | 6.3 oz |
| Finish | Black |
| MPN | SOR44101 |
A sealed circle-dot for a carbine, with enough turret travel to zero it wherever it ends up sitting. Order the ROMEO4T-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: Red Dot Sights, ROMEO4T-PRO FDE or browse all SIG Sauer.
| Brand | SIG Sauer |
|---|---|
| Part no. | SOR44101 |
| Category | Red Dot Sight |
| Barcode | 798681671397 |
£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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