SIG Sauer ROMEO4S Red Dot Sight - 2 MOA Ballistic Circle Dot Reticle

Manufactured by Sig Sauer
SKU: SOR43021
MPN: SOR43021
Manufactured by Sig Sauer
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$359.99 $449.99

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



The SIG Sauer Romeo4S Red Dot Sight has been reconfigured to make use of solar power as well as a single CR2032 battery for up to 100,000 hours of battery life. This 1x micro red dot sight features extremely low parallax for use at any viewing angle with unnoticeable point of impact shift. Another great benefit of the red dot sight is the unlimited eye relief making it extremely quick to find the red dot when bring your rifle up from low ready. The SIG Romeo4S can be switched between 4 different reticle options (2 MOA dot, circle dot, dot with holds, and circle dot with holds). The MOTAC (motion activated illumination) will turn your light on the moment you pick it up to conserve battery life and ensure your rifle will always be ready to use when you need it. The SIG Romeo4S Micro Red Dot Sight is backed by the SIG Sauer Infinite Guarantee and Electronics Limited Warranty.

  • Graphite grey finish
  • Runs on single CR2032 battery
  • Solar powered backup
  • 100,000 hours of battery life
  • MOTAC motion activated illumination
  • 2 MOA dot, circle dot, dot with holds, and circle dot with holds
  • Aluminum housing and multicoated lenses
  • IPX-7 waterproof and fog proof
  • Includes QD co-witness mount and low mount
  • Includes flip up lens covers
  • SIG Sauer Infinite Guarantee and Electronics Limited Warranty

The Romeo4S features a lightweight aluminum housing and IPX-7 rated water and fog proof. The lenses are fully multicoated for optimal light transmission and clarity. Additionally, this red dot sight comes with a quick detach co-witness mount and a low mount.

Sig Sauer is a world-renowned firearms manufacturer with a rich history of innovation and design leadership. No other firearms manufacturer is so highly regarded and so universally respected for the quality, reliability, and safety of its products. Since 1864 they have expanded their product line to include suppressors, optics, ammo, and airguns to provide customers with a greater range of firearms and equipment.
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Battery Life100000 Hours
Battery TypeCR2032 3V Lithium Coin
BrandSig Sauer
Brightness10 Settings
Click Value1/2 MOA
FinishAnodized Grey
Night Vision CompatibleNight Vision Compatible
Reticle2 MOA Dot
Reticle ColorRed
WarrantySIG Sauer Electro-Optic Infinite Guarantee
Weight7.6 oz.

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