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SIG SAUER ROMEO5 1x20mm 2 MOA Red Dot Sight
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$199.99
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SKU: WX2*0709295
Overview
Built for fast target acquisition on a wide range of firearms, this red dot sight pairs 1x magnification with unlimited eye relief to support shooting with both eyes open and a consistent sight picture. The 2 MOA red dot offers 10 illumination settings, including daylight and night vision options, while MOTAC technology helps conserve battery life by activating the sight when it senses movement. Its aluminum housing is rated IPX-7 for waterproof and fogproof performance, and the side-loading battery compartment allows battery changes without removing the optic from the mount. Included M1913 Picatinny mounts give flexibility for setup, including a low mount and a 1.41" riser for true co-witness use.
Why Hunters Choose the Sig Sauer
1x Magnification
Unlimited eye relief support flexible
2 Moa
Red dot reticle offers precise
Motac Motion-activated
Illumination helps extend battery life
10 Illumination
Settings include eight daylight and
Ipx-7 Rated
Aluminum housing is waterproof and
Key Features
- 2 MOA red dot reticle with 10 illumination settings, including 8 daylight and 2 night vision options.
- 1x magnification and unlimited eye relief support target acquisition from varied eye positions.
- MOTAC motion-activated illumination powers on with movement and shuts off after two minutes idle.
- Battery life is listed at 50,000+ hours with ultra-efficient red LED illumination.
- Lightweight aluminum housing is IPX-7 rated for waterproof and fogproof performance.
- Includes M1913 Picatinny low mount and 1.41" riser mount for true co-witness setup.
Best Used For
- For hunters using a wide range of firearms with M1913 Picatinny mounting
- For fast target acquisition in daylight and changing light conditions
- For users wanting motion-activated illumination and long battery life
- For shooters who prefer a true co-witness setup with included mounts
- For wet or foggy conditions where waterproof, fogproof protection matters
Specifications
| Battery Compartment | Side-loading |
|---|---|
| Battery Life | 50,000+ hours |
| Co Witness | True co-witness |
| Eye Relief | Unlimited |
| Fogproof | Yes |
| Housing Material | Aluminum |
| Illumination Color | Red |
| Illumination Settings | 10 (8 daylight plus 2 night vision) |
| Included Mounts | M1913 Picatinny low mount and 1.41" riser mount |
| Lens Coatings | High-performance lens coatings |
| Light Source | Ultra-efficient red LED |
| Magnification | 1x |
| Motion Activation Technology | MOTAC (Motion Activated Illumination) |
| Mount Type | M1913 Picatinny rail mount |
| Objective Lens Diameter | 20mm |
| Parallax | Ultra-low parallax |
| Reticle | 2 MOA LED red dot |
| Waterproof Rating | IPX-7 |
Pros
- 1x magnification and unlimited eye relief support flexible target acquisition
- 2 MOA red dot reticle offers precise aiming reference
- MOTAC motion-activated illumination helps extend battery life
- 10 illumination settings include eight daylight and two night vision options
- IPX-7 rated aluminum housing is waterproof and fogproof
- Includes low mount and 1.41-inch riser for true co-witness setup
Considerations & Trade-offs
- The 2 MOA red dot is a deliberate choice for aiming precision, but it does not provide magnification for identifying distant targets.
- Battery life is extended by MOTAC, yet the sight still depends on a battery and illumination settings that need to be managed over time.
- The included low mount and 1.41" riser mount add flexibility, but setup still depends on matching the sight height to your firearm and preferred co-witness.
- IPX-7 waterproof and fogproof ratings add durability, but the sight is still an electronic optic rather than a non-powered aiming solution.
Suggested Comparisons
- Red dot sights
- Micro reflex sights
- Low-power optics
- Rifle mounting accessories
Suggested Accessories
- Red dot sight mount
- Lens cleaning kit
- Replacement battery
- Flip-up lens covers
Frequently Asked Questions
What reticle does the ROMEO5 use?
It uses a 2 MOA LED red dot reticle with 10 illumination settings: 8 daylight and 2 night vision.
Does this sight have motion-activated illumination?
Yes. SIG SAUER’s MOTAC technology powers the sight on when it senses movement and shuts it down after two minutes of inactivity.
Can the battery be changed without removing the optic?
Yes. The ROMEO5 has a side-loading battery compartment, so the battery can be replaced without taking the sight off the mount.
Is the ROMEO5 suitable for wet or foggy conditions?
The sight is listed as IPX-7 rated and the housing is described as waterproof and fogproof.
What mounting options are included?
It includes an M1913 Picatinny low mount and a 1.41" riser mount for a true co-witness.