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. Set It and Forget It: Stays mounted and zeroed even when changing the battery. Design, Machined and Assembled in the USA. 100% Waterproof, fogproof, shockproof, and backed by Leupold's legendary customer care. Also includes the DeltaPoint base for picatinny or Weaver rails.