SIG SAUER Romeo-X Compact Pistol-Mounted Reflex Sight | Rugged Durable Aluminum Lightweight Waterproof MOTAC Open Sight with 15 Illumination Settings
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Availability:
In Stock.
Arrives
Saturday, May 30
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Color: Black
Style: 6 MOA Green Dot
Features
- DURABLE CONSTRUCTION - The ROMEO-X COMPACT Green Dot Sight, inspired by the MIL-SPEC ROMEO-M17, features a rugged CNC-machined 7075 aluminum housing built to military standards for superior reliability; Designed for optic-ready P365 pistols, it uses an RX footprint compatible with Shield RMS-c mounts, ensuring a secure, precise fit on compact handguns
- HIGH-QUALITY OPTICAL COMPONENTS - Outfitted with a distortion-free aspherical lens, the ROMEO-X COMPACT open reflex sight from SIG SAUER delivers sharp, clear sight pictures for improved accuracy; Premium optical coatings enhance light transmission and color clarity across different environments, ideal for fast, accurate target acquisition
- ENHANCED PERFORMANCE - The ROMEO-X COMPACT pistol-mounted reflex sight features an ultra-low deck height for easy co-witnessing with standard-height iron sights; Its patent-pending Beryllium Copper Flexure Arm adds strength and durability, maintaining zero and reliability through demanding use
- VERSATILE RETICLE OPTIONS - The SIG SAUER ROMEO-X COMPACT Green Dot Reflex Sight offers selectable 3 MOA, 6 MOA, or Circle Dot reticle options; This flexibility allows users to choose the best configuration for their aiming style, improving precision and fast target acquisition in various shooting scenarios
- CONVENIENT IN USE - The ROMEO-X COMPACT Green Dot includes intuitive brightness controls and a side-mounted power unit compartment for quick access; With 20,000 hours of runtime and MOTAC motion-activation technology, it automatically powers up when moved and shuts off when idle; The 15 illumination settings (12 DL & 3 NV) ensure optimal visibility in all light conditions
Brand: Sig Sauer
Color: Black
Style: 6 MOA Green Dot
Sport: Hunting & Shooting
Material: See Description
Model Name: SORX1290
Manufacturer: Sig Sauer
UPC:
Global Trade Identification Number: 63
Brand: Sig Sauer
Color: Black
Style: 6 MOA Green Dot
Sport: Hunting & Shooting
Material: See Description
Model Name: SORX1290
Manufacturer: Sig Sauer
UPC: 798681703463
Global Trade Identification Number: 63
Item Package Dimensions L x W x H: 5.36 x 3.7 x 2.32 inches
Package Weight: 0.11 Kilograms
Brand Name: Sig Sauer
Warranty Description: Infinite Guarantee (+ Electronic Component 5-yr)
Suggested Users: unisex-adult
Number of Items: 1
Part Number: SORX1290
Included Components: See Description
Date First Available: October 22, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, May 30
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Black
Style: 2 MOA / 32 MOA Red Circle Dot
I'm not new to using red dots, but this was the first one I've bought. For use on my gen 1 Sig 365 XL, I needed a red dot that included a rear sight and with the Sig, it's a correct match for the front sight. If I had a gen 2, which has a rear sight that's separate from the sight plate, I likely would have chosen the enclosed version, which does not have the built in rear sight. The sight was easy to install, easy to get zero'd and as long as you've got some decent training, easy to pick up the dot immediately. Please make sure you use the correct screws for your gun and that you've properly torqued them. There are three sets of screws included.
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Reviewed in the United States on January 5, 2026 by Amazon Customer
Color: Black
Style: 3 MOA Red Dot
great red dot sight awesome sight picture and clear reticle fits perfect on my Legion 365
Reviewed in the United States on February 7, 2026 by Ryan
Color: Flat Dark Earth
Style: 2 MOA / 32 MOA Red Circle Dot
Great Red dot sight for one of my Sigs. Simple functionality, easy to zero…. Well made.
Reviewed in the United States on February 4, 2026 by Kelly Ballinger
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Great sight very easy to install and use
Reviewed in the United States on January 21, 2026 by Joe Dirt
Color: Black
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Super nice compact green dot. Fits Sig 365-380 just fine. Very easy to install, use and sight in. Remember to push the optic slightly forward as you tighten mounting screws. Used a torque screwdriver to torque screws. But they give you wrench, so you can just wing it. Use a bore sighter to get close, then tweak it as needed. I did not buy the sig sight-in app. Green dot very bright and adjustable.
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Reviewed in the United States on December 21, 2025 by PAPA
Color: Black
Style: 2 MOA / 32 MOA Red Circle Dot
The circle setting for the red dot wasn't right. It looked more like a coil spring of 3 circles. I contacted Sig customer support. Their response time to emails was very slow. They requested photos from my iPhone of the red dot circle. It's hard to take a clear photo of a red dot. They only replied once a day in the morning. After 3 days of back and forth I was told "After reviewing the image that was sent over I can not see the issue you are describing. If you would still like to send it in for review we can do so but I can not guarantee you that it will be replaced." I had others look at this sight to make sure it wasn't a vision problem I was having. They saw the same thing I did. Sig didn't show any interest in my problem and said they couldn't guarantee that it would be be replaced. That's when I lost confidence in them and decided to return the product and buy another brand that works great.
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Reviewed in the United States on October 19, 2025 by Wildcat
Color: Black
Style: 3 MOA Red Dot
I have a few of these. I have the 2/64 moa & the 3 moa. I’ll take the 3 moa all day long. The unit is solidly built. The dot is very crisp and allows me to quickly acquire it. The battery is easy to access from the side of the unit. The adjustment is a little unique. You need a very small star bit to make the adjustments. Keep the wrench with the optic. The brightness buttons are again on the side of the unit and functional, even with gloves on. It is a little pricey, but you are also getting a well built American assembled Sig optic.
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Reviewed in the United States on May 7, 2025 by Eric B
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It seems high quality, the glass has a blue tint which is annoying but many have tint. I have astigmatism and the dot is crisp for me over my Trijicon RMR and SRO. I mounted this on a ARC division Glock 43 slide and it fits correctly. If you get this optic you can use standard sights. I don't like that it has a non standard battery like every other optic that uses CR 2032 batteries. So you'll have to stock up on a new size. I've banged it around and it's fine, it seems sturdy, it seems reliable. It claims it's assembled in the United States and it comes with a unconditional lifetime warranty, but I'm skeptical Sig will honor it with their now terrible reputation for QC in their products but who knows. I chose this over a EPS carry, maybe wish I didn't idk I personally have had only bad luck with holosun elite optics and am not buying a a RMRcc, so this seemed like a shot to give. Also this is not the enclosed version, it is a standard open emitter which is what I wanted because I don't really personally trust closed emitters as I have also had bad luck with an aimpoint ACRO and this sig optic is going on my carry gun which I'm not too worried about not being able to use the optic if it gets wet.
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Reviewed in the United States on August 5, 2025 by kyle f.