The ROMEO7 features a 1.41" and 1.63" co-witness hex mount and a 2 MOA red dot with 9 daylight settings and 2 night vision settings. Built for hard duty and fast target engagements the ROMEO7 features a 2 MOA red dot that is large enough to see in any lighting condition and small enough to not obscure your target. This allows for a more precise point of aim at greater distance. Fully coated lenses increase light transmission and dot visibility in all lighting conditions. The back loading battery compartment is easily accessible. The user-facing brightness knob lets you adjust the illumination level while keeping your head on the rifle. Battery life is estimated at up to 50,000 hours. For competition or duty use the ROMEO7 compact red dot sight offers shooters a robust 1x aiming solution for any situation. Unlimited eye-relief means you can mount the optic anywhere on the top rail based on your preference. Ultra-low parallax keeps the dot, point of aim, and point of impact consistent no matter your eye position relative to the optical axis of the sight. Waterproof and fog-proof, the ROMEO7 has an IPX7 rating for complete immersion up to 1 meter. For fast and accurate target engagements it is hard to beat a ROMEO7.