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Questions & Answers
is this made in china? Expert Answer

The SIG SAUER Romeo 4XT-PRO 1x20mm Red Dot Sight is manufactured in the USA.

by Ethan, Gear Expert, April 13, 2023
Can this be compatible with an eotech g33 magnifier

Yes. Just get the magnifier mounted at the same height as the red dot. If you have the red dot mounted at lower 1/3 cowitness, you’ll need to mount the G33 at the same height.

by Nashville, Verified Owner, July 27, 2025
Customer Reviews
Helpful Positive Review
Sig Romeo 4XT-PRO by Zac, Verified Owner, January 23, 2026
I am incredibly impressed with the 4XT-PRO. The reticle options, clarity of glass, love the MOTAC. I love that the reticles have 4 holds on 2 of the 4 options. Will run it with an Eotech G43 magnifier. It feels like a tank, very well made. With added...
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1/1 found this helpful
Helpful Positive Review
Great Optic by Bryan Stephens, Verified Owner, March 26, 2024
Very well made and clear glass. Multiple reticle options and much better than the original Romeo 4. Being able to use AAA batteries is a big plus. Sig Sauer Romeo 4XT PRO is a great option in its class.
2/2 found this helpful
Helpful Positive Review
4xt-pro red dot sight by Chris, Verified Owner, January 29, 2024
Romeo 4xt-pro is a fantastic sight. The best one I own.
2/4 found this helpful
Helpful Positive Review
T2 in shamble by Riceroni, Verified Owner, August 8, 2024
Feature rich red dot that ends up being cheaper than a lot of the highest end Aimpoint optics. Different reticle choices, cheaper, just as robust, and clear/crisp reticle makes this a definite winner.
6/7 found this helpful
Helpful Positive Review
Good Red Dot by Tyler, March 5, 2023
Seems to be a solid optic and comes with a lot of features. The glass is some of the clearest I've seen which is expected from sig, the reticle options are extremely crisp with lots of brightness setting, and you do get a range of mounting options an...
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14/46 found this helpful
Helpful Negative Review
Bought a Romeo 4xt-pro directly from Sig. When i received it, it turned on and worked perfectly fine. I set my rifle down for a few minutes and when i picked it up the red dot was off. I tried everything to get it to work again, but it wouldnt turn o...
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12/43 found this helpful
Read All 18 Reviews
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Product Info for SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight

For top-tier accuracy on your favorite firearms, choose the SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight! Whether you attach it to a carbine, shotgun, rifle, or even pistol, the SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight is loved by professionals and civilians alike for its intuitive controls and ease of use. These Red Dot Sights have multiple brightness settings to work in full light and even in conjuction with night vision devices, so you don't have to worry about switching optics between missions. Plus, the SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight comes with 3 standard mounting heights so that you can fully customize the optic to suit your needs perfectly.image

Specifications for SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight:

Manufacturer: SIG SAUER
Magnification: 1 x
Objective Lens Diameter: 20 mm
Reticle: Ballistic Circle Dot
Illumination Type: LED
Illumination Color: Red
Eye Relief: Unlimited
Adjustment Type: MOA
Adjustment Click Value: 0.5 MOA
Emitter Type: Enclosed
Battery Type: AAA
Battery Quantity: 1
Battery Life: 50,000 hours
Gun Make: SIG Sauer
Weight: 7.4 oz
Red Dot Sights-Footprint: Not Applicable
Adjustment Range: 0.5 MOA
Overall Length: 177 mm
Attachment Type: Screw

Features of SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight

  • Top mounted activation with NV override control, 50, 000hr runtime, 3 mounting heights come standard in box.

Package Contents:

  • SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight
  • 3 mounting heights clear flip-backs opaque front flip back and ARD kill-flash.

SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight Orderable Models

List of Orderable Models

  • SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight, Ballistic Circle Dot, Black, SOR44001 , MPN: SOR44001 , UPC: 798681661534 , Code: SD9-RD-4XTPROR-SOR44001
  • SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight, Ballistic Circle Dot, Flat Dark Earth, SOR44002 , MPN: SOR44002 , UPC: 798681661541 , Code: SD9-RD-4XTPROR-SOR44002
  • DEMO, SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight, Ballistic Circle Dot, Flat Dark Earth, SOR44002 , MPN: SOR44002-DEMO , Code: SD9-RD-4XTPROR-SOR44002-DEMO

SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight, Ballistic Circle Dot, Black, SOR44001 , MPN: SOR44001-DEMO , Code: SD9-RD-4XTPROR-SOR44001-DEMO
  • USED SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight, Ballistic Circle Dot, Flat Dark Earth, SOR44002, EDEMO1, Condition Fair, Other , MPN: SOR44002-EDEMO1 , Code: SD9-RD-4XTPROR-SOR44002-EDEMO-OT-D
  • USED, SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight, Ballistic Circle Dot, Flat Dark Earth, SOR44002 , MPN: SOR44002-EDEMO , Code: SD9-RD-4XTPROR-SOR44002-EDEMO-IN-C
  • Open Box, Dealer Demo, SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight, Ballistic Circle Dot, Flat Dark Earth, SOR44002 , MPN: SOR44002-DMO , Code: SD9-RD-4XTPROR-SOR44002-DMO-OB-A
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