SIG Sauer ROMEO-MSR Red Dot Sight - 2 MOA

Manufactured by Sig Sauer
SKU: SOR72001
MPN: SOR72001
Manufactured by Sig Sauer
20 Reviews
$109.99 $149.99

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The SIG Sauer Romeo-MSR Red Dot Sight is highly versatile and compatible with a wide variety of firearms including the MSR, carbines, shotguns, and even air rifles. It is a fully sealed design made from aluminum making this an extremely durable option for any use case. The protected emitter projects a 2 MOA red dot for quick and precise shooting. The top mounted rotary dial allows you to quickly switch between 10 different brightness settings and 2 night vision settings. The battery compartment is also located in the rotary knob for easy access and runs for about 20,000 hours on a CR1632 battery. The lenses are fully coated for optimal light transmission and clarity and like most red dots has unlimited eye relief and zero parallax. Additionally, it comes with see through flip up lens covers for added protection during storage. Another bonus of this red dot optic is that it comes with a skeletonized lightweight riser mount set for an absolute co-witness with iron sights.

  • 2 MOA red dot sight
  • Aluminum housing
  • High performance coated lenses
  • Unlimited eye relief
  • Zero parallax
  • Top mounted rotary knob
  • 10 brightness settings
  • 2 night vision
  • Top mounted battery compartment – CR1632
  • 20,000 hours of runtime
  • IPX-7 waterproof and fog proof
  • Includes lightweight absolute co-witness mount
  • Includes see through lens covers

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 Life20000 Hours
Battery TypeCR1632 3V Lithium Coin
BrandSig Sauer
Brightness10 Settings
Click Value1/2 MOA
FinishHardcoat Anodized
Night Vision CompatibleNight Vision Compatible
Reticle2 MOA Dot
Reticle ColorRed
SizeFull Size
Warranty5 Year Factory Warranty
Weight4.9 oz.

Ratings & Reviews

20 reviews


Highly recommended.

by -

This thing is bad ass! Love it more than the Romeo 5! Sturdy, nice looking, and easy...a great price too. Mine’s been taking a beating and the finish holds up extremely well.

Bad Tool/Good Sight

by -

The red dot itself seems to function well. I was able to dial in the red dot to co-witness with the iron sights easily. Unfortunately, the tool that comes with the red dot bent and stripped when hand tightening the mount to the rail. This also damaged the head of the screw. It is very disappointing that they have used such poor quality metal for the tool that it literally deformed when being used with only the force of my fingers.

Two thumbs up!!


Great for the price, loved it.

Great optic

by -

Simple sweet and stupid. Simple set up, nice looking and anyone stupid can use it. Nothing crazy complicated and accurate.

Nice, simple, holds a zero

by -

I put this (my 3rd) on a new 9mm AR-platform and bore sighted it. First two groups of three were for zero, from then on I was in the 10-ring with every one of the next 30 rounds. Zero held, sight held up great.

Excellent RDS


I bought one for a PDW Pistol build. This sight is excellent for the money and the 2 MOA dot is crisp and clean. The mount is sturdy and I really dig the see through flip up caps. Protects the main glass while still allowing you to shoot. This is an "absolute" co-witness mount. I'm not sure if they offer a lower 1/3 or not but for now, it will do the trick. Will likely buy another one or two!

nice unit


got it on sale 119.00, month and a half ago. installs easy, zeroed quick. lens caps are a bit of a hassle to put on, so they will stay on, problem solved. lower settings hard to see, in bright sun ,5-6 works fine.

Solid unit


I have this unit along with the Juliet 3 Micro. The dot is bright and has held zero well despite being tossed around and such. Not the most "parallax free" as it claims, but for the price its an absolute steal. Not related to this product specifically, but the Juliet 3 Micro sucks. So if you plan to run this in conjunction with the 3x keep reading. The eye relief is about .25 inches with a .001 inch eyebox. If you're used to an ACOG and are used to positioning yourself with you nose on your charging handle then its great. I didn't like changing my form for the 1 rifle I put this on, so I run it with the dot alone and keep the 3x flipped out for IFF and such. Great tool used that way.

Nice unit

by -

Look thru caps are great for iron sights. Knob is stiff but after some use loosens up. Bright dot at five, no issues. Just remember to turn it off.

Right on target!

by -

Sweet red dot. Absolute co-witnessed my magpul backup sights perfectly. Easily adjusted and a variety of brightness settings for any situation.