SIG SAUER ROMEO5 1X20 MM TREAD RED DOT SIGHT: The Sig Sauer Romeo5 compact sight provides a robust 1x aiming solution for any situation. Ultra-low parallax so point-of-aim is point-of-impact and the red dot remains parallel to the bore of your gun, no matter what your viewing angle is relative to the optical axis of the sight. Unlimited eye relief allows you to acquire the aiming point and the target regardless of the position of your eye behind the sight. The readily available CR2032 battery is side-loading, allowing for quick battery replacement (featuring 40,000+ hours or more of life). MAIN FEATURES: - 2 MOA Red-Dot provides 10 illumination settings (8 daylight, 2 NV); - Motion Activated Illumination provides optimum operational safety; - Dependable waterproof and fog-proof performance; - Includes M1913 Picatinny low mount riser & co-witness 1.41"" riser mount; ABOUT SIG SAUER: SIG SAUER is an ISO 9001-certified company with over 2,000 employees. In our world-class facilities, we build the toughest, most precise guns, suppressors, optics, ammunition, and airguns. We do this because we share the same drive to be the best, the same love of freedom, and the same unwillingness to compromise - as those who choose SIG.