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Sig Sauer ROMEO4T Red Dot Sight 1x20 Ballistic Circle Quadplex SOR43032

SKU SOR43032-SigSauer

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Tough and built like a tank, the Sig Sauer ROMEO4 red dot sight is fast, accurate, and a great representative of Sig Sauer quality. For close quarters battle (CQB), competition, or even hunting dangerous game when milliseconds count, count on the ROMEO4 to get rounds on target as fast as possible. ROMEO4 red dot sights come in the following varieties:


ROMEO4 red dot sights also incorporate these features:

  • MOTAC - Motion-sensing technology immediately powers up illumination when motion is detected, and powers it down when it does not - saving battery life and ensuring power is there when needed.
  • Stealth ID - the industrial design of Sig Electro-Optics is based on their legendary firearms; deflection armor trapezoidal surfacing breaks up shape and pattern of the optic
  • Spectracoat - Highly efficient, ultra-wide broadband, anti-reflection lens coatings minimize reflection across the spectrum of visible light, while still permitting maximum light transmission through the scope
  • Sig Optics Infinite Guarantee - They're guaranteed forever - an unlimited lifetime guarantee. Fully transferable, no warranty card or receipt required. Period.

About Sig Sauer

From humble beginnings as a wagon to factory to one of the world’s largest firearms, optics, and ammunition manufacturers; the history of Sig Sauer is rich in innovation and achievement. After winning a contract from the Swiss government in 1864 for their Prelz-Burnand muzzleloading rifles, the Swiss Wagon Factory change its name to Schweizerische Industrie-Gesellschaf, the Swiss Industrial Company, better known as SIG. In 1949 SIG developed the SIG P49, the predecessor to the P210 and continued developing small arms for the Swiss military and police.

Since then the company has changed its name, acquired other firearm manufacturers, and crossed the Atlantic—setting up headquarters in New Hampshire. However, what hasn’t changed is the innovative spirit that has driven SIG SAUER to develop firearms like the SIG516 rifle, MCX rifle, P320 pistol, and P226 pistol. With clients like the Texas Rangers, United States Secret Service, Navy Seals, and dozens of local law enforcement agencies nationwide; SIG SAUER is there When It Counts.


  • Magnification Range:1x
  • Reticle Details1 MOA Red Ballistic Circle QuadPlex
  • Objective Lens Diameter:20mm
  • Dimensions:2.65" x 1.6" x 1.4"
  • Weight:3.2 oz.
  • Battery(1) CR2032
  • Battery TypeCR2032
  • Night Vision CompatibleYes
  • Brightness Settings2 NVD 10 Regular
  • Product TypeReflex Sight/Red Dot
  • Item ConditionNew
  • UPC798681567898
  • MPNSOR43032

Customer Reviews

Average Rating
May 22, 2021

This red dot is awesome. I've owned Burris fastfires, trijicon mro and vortex and this Sig Romeo 4t, by far, outshines them all. As reviewed, height is perfect, love the diff reticles, and is built like a tank for heavy use. As a former LEO, I can't emphasize the importance of the battery life, the solar panel to recharge the battery and the "sleep/wake up" mode of this red dot. No more buttons to find to turn the sight on! The only thing and I mean only thing that I'd have to complain about is the extra "goodies" that I'm sure I paid for and would never be used that comes in the box is the spacers, additional screws and rubber covers. To top off this product was the exceptional value and service the europtics provides.

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January 21, 2021

Comes with basically everything you need. Shipping was quick and trackable. Very clear glass and reticle. I have slight astigmatism and other red dots look hazy to me, this is much sharper, especially beyond ~20yds. Easy to zero and co-witness with iron sights. Held zero through first ~150rds no issue. Didn't shoot more due to insane ammo prices/availability. Best price around.

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October 27, 2023

This optic is crisp, rugged, easy to use, and a phenomenal value. Everyone that tries it, loves it. Can't say enough about this- we have the ballistic dot and circle plex. Both are incredible....makes it incredibly easy to be accurate.

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February 1, 2023

Best in class, mil-spec for use by the FBI.

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May 30, 2021

I enjoy the Red-Dot, the reticles are crisp & clean. Goes hand and hand with the Sig MCX Virtus.

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May 17, 2021

Romeo 4Ts are a phenomenal value

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December 2, 2020

I love the clear optics in the sig and it is a perfect height should work great!

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