Sig Sauer Romeo5 Red Dot Sight 1x20mm 2 MOA

Manufactured by Sig Sauer
SKU: SOR52001
MPN: SOR52001
Manufactured by Sig Sauer
108 Reviews
$124.99 $159.99

In Stock

Standard orders will ship out 2 business days if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.



The Sig Sauer ROMEO5 Red Dot Sight 1x20mm 2 MOA provides a robust 1x aiming solution for any situation. The sights are parallax-free so point-of-aim and point-of-impact remain the same. Unlimited eye-relief allows you to acquire targets regardless of the position of your eye behind the sight. With up to 50,000 hours of life, the commonly available CR2032 battery is side loading so you can replace it quickly if it fails. Romeo5 also features MOTAC (Motion Activated Illumination), which will automatically turn on or shut down based upon the optic’s movement, increasing battery optimization even further. Sig Sauer makes this optic widely adaptable to various weapons with a M1913 Picatinny system, plus low mount riser and a co-witness riser mount allow the user to customize the view to their perspective. 

  • CR2032 Battery
  • 40,000+ hours of battery life
  • MOTAC (Motion Activated Illumination)
  • Waterproof and Fog proof 
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Battery Life40000 Hours
Battery TypeCR2032 3V Lithium Coin
BrandSig Sauer
Click Value1 MOA
Manufacturer.Sig Sauer
Night Vision CompatibleNight Vision Compatible
Reticle2 MOA Dot
Weight5.1 Oz

WARNING: This Product can expose you to chemicals which is known to state of california to cause Cancer and Reproductive Harm. For more information, see

Ratings & Reviews

108 reviews

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Very good

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I really like the sight . I intended to get a different sight at twice the price but after reading reviews decided on this one. Primary Arms has great customer service ,good products , good prices and quick shipping. If you’re on the fence i’d say get it.

Love it!

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Dot pops on with any subtle movement. Easy to locate and aim (even with both eyes open.) Only took 9 rounds for perfect zero. Gonna get me a couple more.

Sig red dot romeo5

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Easy to use . Shake awake is great. Awsome price.

Worth it for price

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Red dot is slightly blurry but it’s still good enough to use.

Great optic

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Great optic. I run this optic on a 10.5 inch barrel A.R. keeps everything compact and lightweight. The only thing I wish that was different is the amount was a 1/3 co-Witness because they run a standard A.R. front sight.

Get them Now - Excellent Red Dot

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Fantastic red dot, excellent mounting options, high quality. Attached to my PCC from Foxtrot Mike (FM 9 7") and is an excellent combination. Highly recommend both.

Best bang for the buck!


Cinched down this little red dot on my Ruger 5.56 while at the bench on the range. My brother in law watched with a spotting scope as the first shots at 100yds came in low and left. Made a few adjustments and the next group came in at bullseye height, still a smidgen left. One more tweak and the bullseye was thoroughly perforated in a five shot volley I could cover with a .50 cent piece. Highly visible red dot was easy to see with no distortion. Both eyes open or one closed, it doesn't matter. A string of rapid fire proved the Sig's performance was no fluke. Great optic and truly a bargain. The motion detection on/off is a fantastic feature. Don't be on the fence about this one. The quality and performance are both there.

Best red dot

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I like the price, quality and the auto off /on function.