The Sig Sauer ROMEO3 MAX 1x30 reflex sight is a compact, no-magnification red dot built for shooters who demand speed and clarity in competitive, tactical, and hunting applications. Developed alongside Team SIG Captain Max Michel, this sight combines a 30mm open lens design with a red-notch filter that delivers a crisp, vivid dot with zero distortion—cutting through glare and low-light conditions where lesser optics wash out. The 3 MOA red dot is sized for rapid target acquisition without sacrificing precision at distance, and the 1 MOA adjustment increments give you fine control for zeroing and wind calls.
Motion-Activated Illumination System (MOTAC) powers the sight up when it senses movement and shuts it down when static, stretching battery life to a claimed 20,000 hours on a single CR2032—a standard battery you can grab anywhere. Twelve intensity levels let you dial in brightness for dawn, noon, or night shooting without hunting for the sweet spot. The side-loading battery tray means you swap cells without breaking your zero or removing the sight from your gun.
Built from aircraft-grade CNC aluminum, the ROMEO3 MAX is sealed to IPX-7 rating (fully waterproof to 1 meter) and fog-proof, so weather and rough handling won't slow you down. It mounts directly to any M1913 Picatinny rail via the included low-profile base. An absolute co-witness riser is available separately if you're running it over irons or magnified optics downstream.
| Magnification | 1x (no magnification) |
| Objective Lens | 30mm |
| Reticle Type | 3 MOA red dot |
| Adjustment Increments | 1 MOA per click |
| Illumination Levels | 12 intensity settings |
| Battery Type | CR2032 |
| Battery Life | Up to 20,000 hours (MOTAC enabled) |
| Water Rating | IPX-7 (1 meter immersion) |
| Housing Material | Aircraft-grade CNC aluminum |
| Mount | M1913 Picatinny (included) |
| Color | Black |
The ROMEO3 MAX ships with a low-profile M1913 Picatinny mount. An absolute co-witness riser is sold separately if you need a higher sight picture.
The included low-profile mount positions the sight low, making it compatible with co-witnessing irons. For absolute co-witness, Sig Sauer offers a riser mount as an accessory.
With MOTAC enabled, the CR2032 battery delivers up to 20,000 hours of runtime. Motion activation extends battery life by powering down when the sight isn't in use.
Yes. The ROMEO3 MAX is IPX-7 rated, meaning it's fully waterproof and can handle immersion in water up to 1 meter deep. It's also fog-proof, making it reliable in wet and cold conditions.
Sig Sauer
Sig Sauer
Sig Sauer
