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The SIG SAUER ROMEO5 red dot sight is a compact 1X20 optic with a crisp 2 MOA red dot, MOTAC motion-activated illumination, ten brightness settings, and more than 40,000 hours of stated runtime. Choose the ROMEO5 sight alone or pair it with the optional JULIET3 3X magnifier configuration.
The fine 2 MOA aiming point supports quick target acquisition while retaining practical precision at distance.
Eight daylight settings and two night-vision settings provide useful brightness control across changing conditions.
MOTAC powers the illumination up when movement is detected and powers it down while at rest to conserve battery life.
The side-loading CR2032 battery provides more than 40,000 hours of stated runtime under normal use.
The sealed housing is rated IPX-7 for waterproof performance and is designed to resist internal fogging.
The ROMEO5 uses an integrated M1913 Picatinny interface and supports low-profile and 1.41-inch absolute co-witness mounting configurations.
SIG SAUER ROMEO5 1X20 2 MOA Red Dot Sight
| 5 star | 50 | 50% |
| 4 star | 25 | 25% |
| 3 star | 25 | 25% |
| 2 star | 0% | |
| 1 star | 0% |




Great little red dot. Sharp dot, bright settings, and reliable motion activation.
Reliable red dot with excellent battery life and durable construction.
Excellent red dot with crisp 2 MOA dot and outstanding MOTAC battery life.
Our holographic sights, rifle red dot sights and rifle scopes are designed for rifles and have been tested with 5.56, 7.62, and .223 calibers. If you require support for larger calibers, please contact customer service. Our pistol red dot sights products are only for handguns.
Our products are sold to Canada, Mexico, Israel, Ukraine, Canada, etc., and have served many customers. Currently, there have been no cases of our products being detained or returned by customs. You can trust our courier services.
Estimated delivery time is generally 5–12 calendar days, depending on the destination, carrier and customs processing. Delivery dates are estimates and may vary. When tracking is available, we will send the tracking link by email.
For details, see our shipping policy.
You may request a return within 30 calendar days after receiving your order. Email [email protected] with your order number and wait for return instructions before sending the item back. Eligibility, return shipping and refund processing depend on the reason for return and the product’s condition. See our refund policy.
Different regions have varying definitions for military-grade products. On Prism-Optic.com, we categorize products into 3 grades—civilian, quasi-military, and military, based on their waterproof, dustproof, and shockproof level:
1. Civilian : IP56 or below waterproof & dustproof, 1500G-2000G shockproof. Suitable for ordinary rifles & pistols.
2. Quasi-military : IP56 waterproof & dustproof, 2000G-2400G shockproof. Suitable for large-caliber shotguns & sniper rifles.
3. Military : IP78 waterproof & dustproof, 2400G and above shockproof. Maintains long lifespan under high-intensity use, suitable for extreme environments.
Our mission is to forge you into a more formidable warrior. We craft reliable, high-performance tactical optics with painstaking attention to detail, offering you a decisive edge on the field—without the premium price tag.
All PrismOptic optics come with a Limited Lifetime Warranty, providing protection against manufacturing and material defects.
Request a return within 30 calendar days after receiving your order. Contact us before sending anything back and follow the instructions in our Refund Policy.
When tracking is available, we email the tracking link. For questions before or after purchase, contact [email protected].
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