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Sig Sauer ROMEOZero-Pro Circle Dot Black Reflex Sight SOR01100

SKU SOR01100-Sig

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List Price $249.99
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Sig Sauer’s ROMEOZero-Pro and ROMEOZero-R series are full-sized optics that are designed for applications on compact to full-sized handguns. Compatible with any handgun featuring the ROMEO2/Pro mounting footprint, these optics come equipped with a sizable 30mm aspherical lens for a wide field of view and enhanced situational awareness. The lens is constructed from scratch-resistant glass with full multi-coatings, ensuring a sight picture with unmatched clarity and free of distortion. The ROMEOZero’s housing is composed of a proprietary carbon-infused polymer. The polymer housing is ultra-lightweight to guarantee reliable cycling when mounted on compact pistols. The polymer design also provides superior durability when compared to pistol optics made from aluminum, allowing the ROMEOZero to easily withstand drops, impacts, and sustained recoil. Other features of the ROMEOZero include Sig’s innovative T.A.P. (Touch Activated Programming) Technology, which allows the user to change the reticle’s brightness by simply tapping the optic. In addition, the ROMEOZero is outfitted with anti-reflection grooves, and an backup rear sight notch with grade-A Swiss SuperLuminova pigment for optimal visibility in low-light situations.


  • Compatible with any handgun featuring the ROMEO2/Pro mounting footprint
  • 30mm aspherical lens made from scratch resistant glass
  • Proprietary carbon-infused polymer housing
  • Highly resistant to drops, impacts, and sustained recoil
  • T.A.P. (Touch Activated Programming) Technology
  • Available with Circle/Dot Reticle or 10 MOA Dot Reticle


  • Magnification Range:1x
  • Reticle Details32 MOA Circle / 2 MOA Dot
  • Objective Lens Diameter:30mm aspherical lens
  • Dimensions:Length: 1.83"
    Width: 1.29"
    Height: 1.09"
  • Weight:0.5 ounce
  • Battery(x1) CR1632
  • Battery TypeCR1632
  • Night Vision CompatibleNo
  • Brightness Settings8 daytime
  • Product TypeReflex Sight/Red Dot
  • Item ConditionNew
  • UPC798681655847
  • MPNSOR01100

Customer Reviews

Average Rating
July 15, 2022

I really like the new Romeo Zero Pro. It is very light, the holographic image is very crisp and clear. I really like to ability to choose between the circle/dot, dot only and circle only holographic image. I have found the circle only to be exceptionally fast for target acquisition from the holster and follow up shots. My only issue is the difficulty in adjusting the brightness. You can use the TAP feature but have to activate it every time by pressing the tiny on/off button literally inside the optic. I smudge the lens about 2 out of 3 times when I need to use the tiny button as it sits right beside the lens on the inside of the optic. Also my finger blocks the holographic projection when pressing the button adding to the difficulty in see the display flash to indicate it is in TAP mode allowing the adjustment of brightness or image selection. Other than this small issue it is great and I will buy a few more to add to my growing Sig Sauer collection.

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