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Sig Sauer ROMEO3 1X25mm Gun Reflex Sight

Based on 97 reviews
Condition: New
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$399.99

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Availability: Only 4 left in stock, order soon!
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Arrives Wednesday, Nov 4
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At a glance

Condition
New
Model
SOR31002
Dimensions
1.1"W x 1.65"H
Weight
15.2 oz
Color
Graphite
Material
Plastic
Sport
Hunting
In the box
M1913 Picatinny low-rise mountQD 1.41in. co-witness riser mountSig Romeo3 Miniature 1x25mm Reflex Sight w/ RiserFogproof SOR31002
Works with
Handgun

Features 5

  • ROMEO3 GUN SIGHT - The open reflex ROMEO3 sight is the ideal sighting solution for guns and full-size handguns; It comes with an included M1913 Picatinny low-rise mount and premium, quick-release QD1.41" co-witness riser mount for mount versatility
  • GREAT CONSTRUCTION - Featuring dependable waterproof (IPX-7 rated - resist water immersion up to 1 meter) & fog-proof performance, the ROMEO3 incorporates illuminated 3-MOA Red-Dot, which is also adjustable (9 daylight settings) for all light conditions
  • MOTAC TECH - The versatile ROMEO3 red dot sight features Motion Activated Illumination technology; It is developed to increase battery life by shutting down the system when not in use and instantly activating it by the slightest vibration or movement
  • SPECTRACOAT - The ROMEO3 1X25mm Gun Sight with Spectracoat tech gets ultra-wide broadband, anti-reflection lens coatings that reduce surface reflections to extremely low levels across the entire visible spectrum providing superior light transmission

Description

BORN IN EUROPE, PERFECTED IN AMERICA In 1853, Friedrich Peyer im Hof, Heinrich Moser and Conrad Neher began what they thought would become a successful wagon factory above the Rhine Falls in Switzerland. SIG SAUER today has a world-class guns knowledge base, unparalleled design expertise, and extensive manufacturing capacity, enabling the company to meet and exceed needs of gun enthusiasts.

Specs 28

Brand Sig Sauer
Color Graphite
Style Romeo 3 Miniature Reflex Sight with Riser
Product Dimensions 1.1"W x 1.65"H
Sport Hunting
Item Weight 15.2 ounces
Material Plastic
Magnification Maximum 1

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If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 4

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Top Amazon Reviews


Extremely high quality Red Dot!
Great red dot sight! When sighted in, you become a sharp shooter. At 60 feet I was able to consistently hit an 8 inch steel plate with no problems under a timed setting (competition environment). The Romeo 3 is the larger cousin of the Romeo 1 (also from Sig). Because the Romeo 3 is a little larger, it's a little heftier in weight. By the way, the sight is cut from one solid piece of metal, making it very robust in taking abuse. Because of my application (I used it atop a Beretta PX4 Storm pistol with a customized picatinny rail) the sight's weight affected the action of the pistol slide necessitating I use 124 grain ammo (rather than the customary 115 grain) to avoid getting stove pipes or failures to feed. The Romeo 3 is really designed for shotgun or rifle use. The Romeo 1 is designed for handgun applications. But at the time of this purchase, the Romeo 1's were scarcer than chicken lips and if you found them, very pricey (I mean the sights, not the lips). Nevertheless, I was still able to successfully use the Romeo 3 as a handgun red dot sight. This sight also comes with bridge to raise the red dot higher if you apply it to an AR or shotgun, raising the sight to eye level while aiming your long gun. A great feature of this sight is the automatic on/off sensor that turns the sight on or off due to the gun being picked up or resting. I found this to be a great battery saving feature. ... show more
Reviewed in the United States on October 30, 2017 by HipV

Great motion activation feature
Works great with my Benelli Super Black Eagle 3 (SBE3). Here are the installation steps: 1)Order the Evolution Gun Works 40601 rail mount which is perfect fit for the gun - you can order directly from the EGW website. 2)On your SBE3, there are 4 plastic plugs that you lightly pound out using a nail set and mallet. You may want to keep the tiny plugs in case you decide to take off the rail someday. 3)The EGW rail includes 4 screws that are a perfect fit. Put a drop of Loctite Heavy Duty Threadlocker Blue 242 on each screw before mounting to prevent any loosening over time. 4)The Sig Sauer sight includes a low-profile and high-profile base. I am currently using the low one. Use whichever one you prefer. The high-profile base is designed so you can also see the iron sights on your gun, but this is moot on the SBE3 because the EGW rail blocks the iron sights anyway. REVIEW -The aluminum body feels very solid and durable. -The red dot is bright and highly visible during the day. You can dim the dot for low-light conditions. I found the dimming function to not work in a stepwise fashion - it is basically high brightness or low brightness without anything in between. -My favorite feature and the reason I picked this sight over cheaper options is the motion activated on/off. It is always ready to go which is especially useful for urgent situations like home defense. You never need to touch a button to use this sight unless you want to change the brightness. -I can lock onto a target in under 1 second compared to multiple seconds with the iron sights. -The battery compartment is a bit finicky. I felt like I was going to break it when I opened it. Hopefully, I don't need to change the battery often. -You need a tiny hex wrench to adjust the sight. You can't just use a finger or screwdriver. OVERALL While fairly expensive, this sight works great. There are less expensive sights that will probably work just as well. The main reason to pay extra for this Sig Sauer is the motion activated on/off which has many advantages - saves batteries, immediately ready for emergencies, one less thing you need to remember to do. TIP: On your sight, practice loosening the set screw before you make any red dot adjustments. It is easy to forget to do this which can break your expensive sight. ... show more
Reviewed in the United States on April 14, 2018 by Gcat

Mine came as silver not black but didnt matter to me but just so you onow
Came as silver not black but didn't matter to me
Reviewed in the United States on April 3, 2022 by Jared lyon

Sig Sauer Romeo3
Excellent quality works terrific, Sig stuff is always great.
Reviewed in the United States on November 5, 2025 by Michael lovett

A good fit for Sig MPX and Ruger 22/45 Lite.
I’ve become a fan of these Red Dot sights as my eyes are getting more “mature”. I have this exact sight on my Sig MPX and I liked it so much I purchased a second for a new Ruger 22/45 Lite. These are quality built with precise click adjustments and mount solidly to the picatinny rails. They hold zero well and I have no complaints. They are a bit pricey for a working man but you do indeed get what you pay for with optics. Do it... my bet is you won’t be sorry. ... show more
Reviewed in the United States on December 17, 2018 by AzFoofighter

Open your eyes with this optic!
Wow! Super effective on my Sig MCX using the included tall riser. Field of view is nice and shooting with both eyes open is natural with this optic. Mounts effortlessly on the Picatinny rail. It's on the expensive side to be sure but worth it.
Reviewed in the United States on March 27, 2020 by B. Thompson

Holy Cow this thing ROCKS!
Solid build and nice light while using on my PCC. The height is a little high for me but I can look under the sight and use my iron sights and that can work if the sight were to go down during competition. Easy to install and feels very solid. Really like these Romeo sights since this is my 2nd one. I would / will get another for my next build. ... show more
Reviewed in the United States on June 30, 2017 by JAV

Reflex sight quit working
I put my new Sig Romeo reflex sight onto my home defense gun in January and put the gun on the wall mount in the closet with the rubber dust cover on it. I have not fired it since. I got some plink targets and the weather warmed up and I thought I'd take it out and adjust the sight. The red dot no longer works. The sight lights up all red instead and when I adjust the brightness the dot flickers on only when I press up or down on the button. I can't even hold the brightness button down and use it because it is literally one flicker per button press (as if that would be acceptable, it isn't). I tried to clean it. I tried a new battery. I can find no solution. The return period was over within days of receiving the item. It cost $200 and I don't even have a way of reaching out to try and complain besides to leave this review. Luckily Sig has a notoriously good customer service. I plan on trying them for help on a friend's suggestion. I noticed this issue in mid March. Can't say how long it lasted specifically, but even if it quit the day I took it off the wall to get some range time in and adjust it, that's from part of January 2024 to part of March 2024. 2 months max. ... show more
Reviewed in the United States on April 7, 2024 by Renegade87
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