Sig Sauer Romeo5 Red Dot Sight 1x20mm 2 MOA

Manufactured by Sig Sauer
SKU: SOR52001
MPN: SOR52001
Manufactured by Sig Sauer
116 Reviews

In Stock

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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 Life25,001 - 50,000 Hours
Battery TypeCR2032 3V Lithium Coin
BrandSig Sauer
Click Value1 MOA
FinishHardcoat Anodized
ManufacturerSig Sauer
Mount CompatibilityAimpoint Micro
Night Vision CompatibleNight Vision Compatible
Reticle2 MOA Dot
Reticle ColorRed
Weight5.1 Oz
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

116 reviews


Great product

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The ROMEO5 works great on my 300 Blackout , works really well on hogs and on home defense. Exactly what I expect out of a Sig Sauer product and the price was great too.

Nice sight

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Nice sight, nice price point. Not an Eotec but for a basic build it fits the suit. Clear, and zero holds on 5.56. Recommended.

Excellent Red Dot

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Great value, Excellent quality

Great optic for the price

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Very impressed with the optic for how little it costs

Great optic

by -

I get a lot of mileage out of the Romeo 5s I think I have 6 of them now. There's no point in me reviewing the Romeo 5 since there are tons of reviews online already and at least 2 torture test videos. It's the best red dot anywhere near this price range, that is indisputable. Primary Arms is a great vendor. Shipping is always fast and affordable. I've bought a ton of stuff from them over the years and always it was a great buying experience.

Best Buy Under $150

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I'm an Aimpoint guy, I have 4. I also have 3 Romeo5s. All work great.

Lancer magazines are wonderful

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They are the best

Sig Romeo 5

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Great sale prices, ease of ordering and fast shipping. Primary Arms can't be beat! PA has become my go to for optics

The best budget red dot out there!

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These red dot's are my go-to when I decide that the firearm the sight is going on isn't quite worthy of a much more costly Trijicon or Eotech sight, but still deserves a nice red dot. I love that the on/off and brightness controls are on top instead of the side like it's competitors. They hold zero and haven't failed me yet. Highly Recommend! I own 2, and both have held up nicely.

Little awesome red dot!

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I have several ARs and all of them I have this Sig Saur Romeo 5. The sight is good-top quality. Super light, which important in my book. Small vs being a big, clunky red dot and my favorite feature it has the MOTAC (Motion Activated off and off) you don’t have to worry to turn the sight off once you are stop using your rifle. After 60 seconds of no movement the sight goes off, which help to the battery life. According to Sig, this little wonder’s battery last up whopping 50 000 hours! Very happy with my Romeo 5