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SIG SAUER Romeo-X Pro 1x24mm Open Emitter Reflex Red Dot Sight
As Low As $359.99 Save Up to 21%
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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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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

fantastic red dot

by theamazingxan, Verified Owner from AS, United States Written on April 17, 2025
i've been a longtime sig optics fan, and this red dot does not disappoint. the form factor is great: low deck height, easy controls, side mounted btty, shake awake! my only gripe is the screws supplied are not identical to those that come with a DPP. the footprint is accurate, but not the screws. i reached out to OP only to be disappointed in their response. instead of offering to send out replacement screws, they recommended returning the entire order. not sure what the logic there was. regardless, outstanding red dot!
Would recommend: Yes
1 of 2 found the following review helpful.
Was it helpful to you? Yes | No

Red Dot for X-Ten Comp 320

by Silentrun, Verified Owner from TX, United States Written on March 5, 2025
The unit installs great and comes up great. BUT, I really thought that a larger sight would be available for the 10MM. More like the M18 but it's good and no issues.
Pros:
  • Great fitment and execution
Cons:
  • Smaller than I had expected
Would recommend: Yes
0 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Red dot optic

by Gunguy, Verified Owner from IN, United States Written on January 3, 2025
Great company to work with, good prices and fast delivery. The SIG sight is working great.
Would recommend: Yes
Was it helpful to you? Yes | No

Sig Romeo X purchase

by Rick, Verified Owner from FL, United States Written on December 3, 2024
Love this optic! Easy install, great clarity. Optics Planet offered a great price and shipped immediately - received within a week.

Thank you for the great customer experience.
Would recommend: Yes
Was it helpful to you? Yes | No

Very nice if you want iron sights on your sig 17 or 18 this is the way to go very nice setup!!!

by Average Joe, Verified Owner from FL, United States Written on October 31, 2024
Love the color match for the F D E shot awesome would highly recommend this red dot
Would recommend: Yes
Was it helpful to you? Yes | No

Nice but NOT Deltapoint pro Footprint

by Mark, Verified Owner from NH, United States Written on October 31, 2024
Very high quality but will not fit deltapoint pro footprint. It is the right size, BUT the recoil bosses will not fit.
Pros:
  • Quality
  • Design
Cons:
  • Footprint
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

sig sauer Romeo X Pro

by David Dysarczyk, Verified Owner from TN, United States Written on October 12, 2024
I put the Romeo X Pro on my M-17, super EZ to install looks awesome and shoots great. One of my best optics
Would recommend: Yes
Was it helpful to you? Yes | No
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