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Sig Sauer ROMEO5 GEN II 1x20MM Red Dot
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$149.99
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SKU: SOR5101-798681694600
Overview
Built for fast target acquisition on a wide range of firearms, this 1x red dot sight offers a compact aiming solution for hunters and armed professionals who want simple, immediate sight picture. The 2 MOA red or green dot, 12 illumination settings, and MOTAC motion-activated operation support flexible use in changing light conditions, while the CR2032 battery is easy to replace when needed. With IPX-7 waterproofing and a 40,000-hour runtime under standard usage, it is suited to hard-use setups where dependable electronics and straightforward controls matter. Its compact size and lightweight profile make it a practical option for rifles and carbines without adding unnecessary bulk.
Why Hunters Choose the Sig Sauer
1x Aiming
Solution for close-range use on
Crisp 2
MOA red or green dot
Motac Motion-activated
Technology helps conserve battery during
Cr2032 Battery
Is quickly replaceable for straightforward
40,000-hour Runtime
Under standard usage supports extended
Key Features
- 1x aiming solution with a 20 mm clear aperture
- 2 MOA red or green dot emitter
- Motion-activated MOTAC technology helps conserve battery life
- Powered by one CR2032 battery, quickly replaceable
- Up to 40,000 hours runtime under standard usage
- IPX-7 waterproofing
- 12 illumination settings, including 2 night-vision settings
Best Used For
- Civilian rifle users wanting a compact 1x red dot for general-purpose shooting
- Armed professionals needing a durable aiming solution with motion-activated illumination
- Hunters who prefer a simple, fast-acquisition optic for close- to mid-range use
- Users who want a replaceable CR2032 battery and long stated runtime between changes
- Shooters operating in wet conditions who need IPX-7 waterproofing
Specifications
| Battery | 1 CR2032 |
|---|---|
| Clear Aperture | 20 mm |
| Color | Black |
| Dot Size | 2 MOA |
| Emitter Color | Red or green |
| Height | 61.5 mm |
| Illumination Settings | 12 (10 DT + 2 NV) |
| Magnification | 1x |
| Motion Activation | MOTAC |
| Overall Length | 69.7 mm |
| Overall Width | 39.6 mm |
| Run Time | 40000 hrs |
| Total Elevation Travel | 100 MOA |
| Waterproofing | IPX-7 |
| Weight | 5.5 oz |
Pros
- 1x aiming solution for close-range use on civilian and professional platforms
- Crisp 2 MOA red or green dot emitter for precise aiming reference
- MOTAC motion-activated technology helps conserve battery during inactive periods
- CR2032 battery is quickly replaceable for straightforward power management
- 40,000-hour runtime under standard usage supports extended service intervals
- IPX-7 waterproofing adds protection for wet-weather and field conditions
Considerations & Trade-offs
- This is a 1x optic, so it’s designed for close- to mid-range aiming rather than magnified observation or target identification.
- The 2 MOA dot is paired with 12 illumination settings, which gives flexibility, but it still requires the shooter to choose an appropriate brightness level for the conditions.
- Runtime is listed under standard usage with MOTAC, so actual battery life will vary with how often the optic is active and what brightness setting is used.
- The compact 20 mm aperture and lightweight 5.5 oz build keep the profile small, but that also means less viewing area than larger-window optics.
Suggested Comparisons
- Micro red dot sights
- Prism sights
- Holographic sights
- Red dot magnifiers
Suggested Accessories
- Optic mount
- Lens cleaning kit
- Spare CR2032 battery
- Protective optic cover
Frequently Asked Questions
What type of aiming solution is the ROMEO5 GEN II intended to be used as?
It is a 1x aiming solution intended for civilians and armed professionals alike.
Does the ROMEO5 GEN II use a red dot only, or does it offer more than one color option?
The source data says it has a crisp 2 MOA red or green dot emitter.
What battery does the ROMEO5 GEN II use, and is it replaceable?
It uses one CR2032 battery, and the battery can be quickly replaced.
What runtime is listed for the ROMEO5 GEN II?
The listed runtime is 40,000 hours under standard usage.
What waterproof rating is listed for this optic?
The ROMEO5 GEN II is listed with IPX-7 waterproofing.