The Freedom RDS (red dot sight) changes the game when it comes to consistency and durability in a red dot sight. Backed by a lifetime warranty. Leupold's Professional-Grade Red Dot Optical System offers unmatched light transmission that's designed to outperform in the most challenging lighting conditions, industry-leading glare reduction for a clear image in harsh, direct light, and the resolution and clarity that professional guides and shooters demand in the field. Your battery should be the last thing you have to worry about in the field. That's why Leupold designed Motion Sensor Technology (MST(TM)) to extend your battery life. Each red dot design has to survive 5,000 impacts on the Punisher, Leupold's recoil simulation machine. If the red dot doesn't perform in any way during the tests, Leupold will make adjustments to the design and test it again. It automatically deactivates the illumination after five minutes of inactivity, and as soon as movement is detected, the illumination instantly reactivates, keeping you in the fight for longer. Includes AR-specific mount. Battery Life at Brightness 4 of 8: 1000 hours minimum RDS no mount with battery = 7.2 ounces RDS with mount, battery & capped adjustments =12.6 ounces Dot provides definitive aiming point 1 MOA (minute of angle) dot is ideal for precise shot placement Does not obscure target Provides wide field of view Rapid target engagement Red illumination 1 MOA is approximately 1 inch at 100 yards