Leupold Freedom RDS BDC 1x Red Dot with Mount - 1 MOA Dot - All red dots are not created equal. The Freedom RDS (red dot sight) changes the game when it comes to consistency and durability in a red dot sight. This BDC model comes with a pre-calibrated dial for 5.56/.223 55gr rounds that lets you accurately adjust the dot out to 400+ yards. Leupold took the 70+ years of optics knowledge and created a red dot that's built Leupold tough, performs in extreme conditions, and won't break the bank. This true 1x sight has everything you need in a red dot and nothing you don't. And like all Leupold riflescopes, it's designed, machined, and assembled in the USA and guaranteed for life. 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, and BDC = 13.1 ounces The ZeroStop system creates a backstop when returning the dial back to zero, so you don't accidently turn the dial a full revolution in the wrong direction. This scopes comes with an illuminated reticle, which can help you get on target faster in low-light situations. Motion Sensor Technology (MST) extends battery life by automatically deactivating illuminated reticles after five minutes of inactivity and then reactivates instantly as soon as movement is detected. Leupold pioneered modern waterproof and fogproof technology using advanced internal gasses and sealing methods that withstand extreme temperatures, elevation changes, and shocks, so the internals of the optics stay moisture free and crystal clear for life.