The ROMEO1PRO Gun Sight brings a new level of durability and performance to the miniature open-reflex red dot sight. Its aluminum housing ensures corrosion resistance under the harshest environments, and a new upgraded point-source emitter provides increased brightness in day or night conditions. The molded glass aspheric lens has upgraded coatings for superior light transmittance and zero distortion. The ROMEO1PRO Red Dot Sight includes a ruggedized protective shroud in the box. SPECIFICATION: – Adjustment Increments: 1.0 MOA; – Magnification: 1x; – Objective Lens Diameter: 30mm; – Battery: CR1632; – Reticle: 6 MOA Red Dot; – Dimensions: 46.5mm(L) x 31.7mm(W) x 27.4mm(H); – Weight: 1oz; – Waterproofing: IPX7; – Illumination Settings: 10 daytime / 2 NV; – Total Elevation/Windage Travel: 100 MOA; – Run Time: 20000; 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.