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Sig Sauer ROMEO1PRO, 6 MOA, 1.0 MOA Adjust, Steel Shroud, Black SOR1P101

SKU SOR1P101-Sig

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The Sig Sauer ROMEO1PRO Reflex Sight is a no nonsense compact and combat-ready red dot sight designed for use with handguns. The ROMEO1PRO features Sig's MOTAC (Motion Activated Illumination System) that activates red dot illumination when motion is detected and deactivates dot illumination when motion ceases - allowing for up to 20,000 hours of runtime per battery. With an upgraded emitter for superior brightness, the ROMEO1PRO is capable of mounting to any SIG pistol or any other pistol machined to accept the ROMEO2 / PRO reflex sight interface and mounting hole spacing using the included M4 mounting screws. The ROMEO1PRO features Sig's TruHold Lockless Zeroing System that utilizes twin adjustment springs and ensures return to zero shot after shot.

Features of the Sig Sauer ROMEO1PRO Reflex Sight

  • Molded Glass Aspheric Lens
  • High Performance Lens Coatings
  • Multiple Brightness Settings
  • TruHold Lockless Zeroing System
  • MOTAC (Motion Activated Illumination System)
  • CNC Machined Aluminum Housing
  • Rugged Protective Steel Shroud Included


  • Magnification Range:1
  • Reticle Details6 MOA Red Dot
    Adjustments: 1 MOA
    Overall Elevation/Windage Adjustment: 100 MOA
  • Objective Lens Diameter:30mm
    Window Height: 0.71" / 18mm
    Window Length: 1.1" / 28mm
  • Dimensions:Overall Length: 1.8"
    Front Width: 1.2"
    Rear Width: 1.0"
    Overall Height: 1.1"
  • Weight:1.0 oz
  • BatteryCR1632
  • Battery TypeCR1632
  • Night Vision CompatibleYes
  • Brightness Settings2 NVD 10 Regular
  • Product TypeReflex Sight/Red Dot
  • Item ConditionNew
  • UPC798681616541
  • MPNSOR1P101

Customer Reviews

Average Rating
December 16, 2020

One of the biggest reasons I bought the Romeo 1 Pro is because it was made to fit my Sig P320 X5 Legion. The red dot is very well made and comes with a lot of extras, like metal shroud, rubber cover and a nice screwdriver that holds a spare battery. Can't say hold it will hold up to competition yet but Sig has a very good warranty. Also EuroOptic has great prices and fast service!

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May 9, 2022

Wanted this site for a while to replace an RMR. 100‰ improvement over the RMR. large window for "seasoned" eyes. Super simple adjustable dials. On a side note, fantastic shipping offered by EuroOptics and I will be using the company again.

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March 8, 2023


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January 3, 2022

Euro Optics for the Win! I ordered this a week prior to Christmas, to my surprise- they got it from PA to OR in just 2 days. Extremely impressed with their customer service and shipping times. Don't hesitate to give these guys/gals your money. As for the Romeo 1Pro Optic, it does not disappoint! It was a breeze to get installed on my Sig P320. Plenty of extras and the protective shroud is an awesome addition!

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March 29, 2021

I bought a Sig Romeo1Pro 6MOA for a Glock 34, 5gen ready from the factory for red dot sights. The Sig kit comes with everything one might need to mount the sight on most common pistols, it has no mounting plate designed to fit Glocks. I found this to be odd considering how popular Glocks are. Hence the four stars. I very much like the size of the red dot for IDPA competition, the size of the objective lens, the top load battery, the placement and size of the on/off/brightness buttons, and the fact it maintains zero despite recoil from hundreds of rounds fired. I should note the vertical and horizontal adjustment screws have little perceptible detent for each MOA click. Nevertheless, adjustments are easy and zero does not change as a result of recoil.

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