The DeltaPoint Pro is proof that you don't have to compromise performance on a small sight. Whether its topping your AR, shotgun, or pistol, the DeltaPoint Pro gives you a clear field of view and the bold aiming point you need in high-pressure situations. Crafted from aircraft-grade aluminum, this sight is made to handle abuse. Your battery should be the last thing you have to worry about in the field. That's why Leupold designed Motion Sensor Technology (MST) to extend your battery life. 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. IPX4 waterproof.