Sig Sauer ROMEO 4T-PRO SOR44101 Details
– Designed for modern semi-automatic pistols, MSR platforms and shotguns
– Short and medium range engagements and recreational shooting across a wide range of calibers and light conditions
– Fully ruggedized and impact resistant for the toughest environments
– Ultra durable and lightweight 7075 aluminum main housing and components, 1.41″ riser mount with additional lower 1/3 co-witness spacer
– Comes standard with see-through lens covers and hex bolt mount
– Complete Mil-Spec 810G testing, submersible up to 20 meters
– Runtime in excess of 100,000 hours with solar and battery usage
– Ballistic Circle-Dot and Ballistic CirclePlex reticle options
– Users can select from 4 different integrated reticle options (Dot, Circle-Dot, Dot with Holds, Circle-Dot with Holds)
– Unlimited eye relief to acquire aiming point and target, regardless of eye position behind sight.
– MOTAC (Motion Activated Illumination) powers up or down when sensing motion
– Uses an ultra-efficient red LED illumination for daylight visibility and extended runtime
– Bolt mount included
– Strong, lightweight 7075 Aluminum housing
– Waterproof, IPX-8 rated, and fog-proof.
Sig Sauer ROMEO 4T-PRO SOR44101 Specifications
| SKU | ROMEO4T-1x20MM-PARENT |
|---|---|
| Waterproofing | IPX-7 |
| Height | 63.5 mm |
| Magnification | 1x |
| Clear Aperture | 20 mm |
| Overall Length | 85.5 mm |
| Overall Width | 46 mm |
| Battery | (1) CR2032 |
| Reticle Color | Red |
| Weight | 7.6 oz |
| Illumination Settings | 10 daytime/2 Night Vision |
| Total Elevation Travel | 100 MOA |
| Total Windage Travel | 100 MOA |
| Run Time | 100000 hrs |
The Sig Sauer ROMEO 4T-PRO SOR44101 is a tactical red dot sight engineered for modern semi-automatic pistols, MSR platforms, and shotguns, delivering precision and durability for short to medium-range engagements. Constructed from lightweight, ultra-durable 7075 aluminum with a matte black finish, the Sig Sauer ROMEO 4T-PRO SOR44101 weighs 6.3 ounces and measures 2.66 by 1.97 by 2.46 inches, ensuring a compact profile for versatile mounting. Its IPX8 waterproof rating and MIL-STD-810G certification guarantee performance in extreme conditions, including submersion up to 20 meters, making it ideal for recreational shooting, law enforcement, and professional tactical operations across various calibers and lighting environments.
The Sig Sauer ROMEO 4T-PRO SOR44101 features a Quad Ballistic Circle Dot reticle with a 2 MOA red dot, offering four selectable options: Dot, Circle-Dot, Dot with Holds, and Circle-Dot with Holds, allowing shooters to customize their sight picture for diverse scenarios. Its 20mm objective lens, equipped with engineered coatings, provides a clear, parallax-free sight picture with unlimited eye relief, enabling rapid and accurate target acquisition. The Sig Sauer ROMEO 4T-PRO SOR44101 includes nine daytime and three night-vision-compatible brightness settings, ensuring optimal visibility in bright daylight or low-light conditions. Powered by a CR2032 battery, it delivers over 50,000 hours of runtime, enhanced by MOTAC motion-activated illumination, which powers down the optic when idle and reactivates instantly with motion for immediate readiness.
Designed for flexibility, the Sig Sauer ROMEO 4T-PRO SOR44101 comes with a 1.41-inch riser mount, a lower 1/3 co-witness spacer, and a robust half-inch hex mount, accommodating Picatinny rails for seamless integration on various platforms. Top-mounted activation with a night vision override control offers intuitive operation, while clear flip-back lens covers and an ARD kill-flash minimize glare for enhanced clarity. The Sig Sauer ROMEO 4T-PRO SOR44101 provides 100 MOA windage and elevation adjustments at 0.5 MOA per click, facilitating precise zeroing. Accessories, including a lens cloth, battery, and Torx tool, are included for straightforward setup and maintenance. Its rugged design ensures consistent performance under recoil and environmental stress. In 2025, the Sig Sauer ROMEO 4T-PRO SOR44101 sets a standard for red dot sights with its versatile reticle options, durable construction, and user-friendly features, making it an essential optic for shooters seeking reliability and accuracy in dynamic shooting scenarios.
Ardalon Tadayon (verified owner) –
Excellent red dot for its price point. Mounted on an Aridus Industries CROM for a Beretta 1301 Tactical as a more affordable alternative to a Aimpoint T2. I suspected this optic would be of a slightly lower quality than the T2 due to the lower price, but this thing meets and even exceeds the capabilities of the T2 in so many ways. Glass is clear, reticles are crisp and bright. There is a slight reflective glare if a light source is directly behind you when looking through the sight, but it’s not present most of the time and is very easy to get used to. Highly recommend this optic!
Trevor Gin (verified owner) –
The Sig 4T Pro and the Aimpoint T2 is an obvious comparison, but the Sig matches the T2 pound for pound in almost every category (I cannot speak to durability yet, but I have used this for almost a year and even in a class, and it is still going strong.) On top of that, Sig gives you extra reticles that are useful for someone with astigmatism.
joshuasmartinez@protonmail.com (verified owner) –
I’m a fan of the ballistic reticle, the glass is clear, and the dots are symmetrical circles under magnification (not amorphous blobs). I’m happy with the included accessories, just wish Sig had included a spacer to get to 1.93. Overall good quality and would likely purchase another 4TPRO.
alex9947 (verified owner) –
Highly recommend pairing with a scalarworks mount looks great and lightweight- reticle options of the optic are unmatched.
Great optic and quick shipping- best prices around also!
bto72 (verified owner) –
Great alternative to the Aimpoint T2 as a micro red dot. Solid build, clear glass, and nice mulit retical options that the T2 doesn’t offer. The only complaint I can think of is there is a red glare depending on the lighting conditions but I’m pretty sure all red dots have this issue to some degree. Other than that highly recommend and especially from Arax!!
prs27 (verified owner) –
Bought this optic from Arax Systems two years ago. Been very impressed with build quality and glass clarity and it’s held zero. I like the different reticle options, but the BDC dots are really only usable with a magnifier. My only disappointment is the elevation adjustment has no real discernible clicks. The windage is very tactile. It was still relatively easy to zero and has held zero, as previously mentioned, so I’ve looked past it. Overall a very good optic for the money.
Jace Zuger (verified owner) –
I mounted this on my 1301 with an adm low qd mount and it has mount its has been awesome. On sale and free shipping 100% happy!