Designed for the demands of daily carry, duty use, and range work alike, the Vortex Defender-ST Enclosed Solar 3 MOA is a tough, adaptable micro red dot ready for anything. The Solar with Auto D-TEC Technology detects light conditions and automatically draws power from solar or the CR2032 battery as needed, while motion activation with 10-minute auto-shutoff conserves battery life when the optic is holstered or stored. The large viewing window and aspherical lens deliver a distortion-free sight picture with fast target acquisition across all 12 brightness settings, including two night-vision-compatible levels. The rugged 7075 aluminum enclosed housing protects the emitter from debris and moisture, and the ShockShield polymer insert absorbs the impact of daily carry and firearm recoil. Compatible with the DeltaPoint Pro footprint for wide mounting versatility. Includes Glock MOS Adapter Plate, Picatinny Mount, Rubber Cover, Lens Cloth, Battery, Tool, and Mounting Screw Set. Backed by Vortex's VIP Lifetime Warranty.