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SIG SAUER Romeo-X Pro 1x24mm Open Emitter Reflex Red Dot Sight
As Low As $285.49 Save Up to 37%
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Most Helpful Positive Review Fits the sig p320 m18 perfectly
I did a lot of research and I could not find out whether or not I could co-witness my iron sights through the optic on my Sig M18. It uses the delta point mount so I knew it would fit. So I can answer YES!!!!!! I can see my iron sights through the optic on my Sig M18. And its super high quality.
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good red dot, but pricy. but you do get what you pay for.

by Steve-o, Verified Owner from LA, United States Written on March 2, 2026
This is a real nice red dot, I have not put it under strain with my xten 10mm yet, but allegedly it was built to handle that so unless otherwise noted it should be able to handle it. Also, if you can turn the circle dot off and make it just red dot with this model, why would anyone order the red dot one instead of ordering this model, which can do regular dot like other one but also has option of circle dot? Just sayin’.
Pros:
  • Heavy Duty
  • flexibility
  • small size yet large viewing window
Cons:
  • price
Best Used for:
  • handguns
Would recommend: Yes
Was it helpful to you? Yes | No

Great Optic

by Clayton, Verified Owner from MN, United States Written on February 24, 2026
I have multiple Romeo-X Pro's and they have all been great. Great pricing and quick shipping.
Would recommend: Yes
Was it helpful to you? Yes | No

Romeo X Pro

by T242, Verified Owner from IL, United States Written on February 1, 2026
Got a great red dot at a very nice price. Optics Planet is a great place to buy from.
Would recommend: Yes
Was it helpful to you? Yes | No

Excellent Red Dot

by RM, from FL, United States Written on January 28, 2026
I’ve been extremely impressed with the SIG SAUER Romeo-X Pro. The glass is very clear with minimal distortion, and the dot is crisp and easy to pick up, even in bright daylight. Installation was straightforward, and it held zero perfectly after multiple range sessions.
Would recommend: Yes
Was it helpful to you? Yes | No

Excellent Red Dot

by RM, from FL, United States Written on January 28, 2026
I’ve been extremely impressed with the SIG SAUER Romeo-X Pro. The glass is very clear with minimal distortion, and the dot is crisp and easy to pick up, even in bright daylight. Installation was straightforward, and it held zero perfectly after multiple range sessions.
Would recommend: Yes
Was it helpful to you? Yes | No

Great optic for p226

by Raider, Verified Owner from OH, United States Written on January 22, 2026
This was essentially a brand new optic it had all the original parts and stickers, great deal on a great optic I would buy another in a heartbeat if the need and availability where there.
Best Used for:
  • EDC, Home Defense, Competition
Would recommend: Yes
Was it helpful to you? Yes | No

Bunk reddot

by Irate, Verified Owner from AK, United States Written on December 2, 2025
The shake to wake didn’t work, already had to send it to sig
Would recommend: No
Was it helpful to you? Yes | No

Romeo-X Pro

by Del, Verified Owner from CA, United States Written on November 14, 2025
Purchased the Romeo X Pro red dot for my Sig Sauer P320 M18 and X5 Legion. They are a direct fit and does not require adapter plates for these models mentioned. Optics work well
Would recommend: Yes
Was it helpful to you? Yes | No

Sig Sauer Romeo-X pro

by Runner, Verified Owner from CO, United States Written on September 1, 2025
It easy it was to mount on my P320 AXG. Took it to the range and was amazed at how it was dialed in right out f the box. A few minor adjustments and zeroed. Love that the battery is side mounted and easily accessible. Great to co witness my iron sights. Motac feature is another plus. Would definitely recommend the Romeo X Pro if you’re looking for a red dot optic.
Pros:
  • Easy adjustment
  • co witness
  • Side Mounted Battery
Cons:
  • None
Best Used for:
  • concealed carry
Would recommend: Yes
Was it helpful to you? Yes | No

Optics planet

by Blake, Verified Owner from TX, United States Written on June 2, 2025
Great red dot sight easy to install on pistol, little hassle optics planet was quick easy and simple to use.
Pros:
  • Clear
  • Light good clear glass
  • simple & easy
  • clean & crisp
  • Lightweght
Cons:
  • None
Best Used for:
  • Pistol
Would recommend: Yes
Was it helpful to you? Yes | No
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