Featuring a fully enclosed design that protects the optic from rain, dust, and impacts, the Vortex Defender-CCW Enclosed Solar Micro Red Dot Sight delivers absolute reliability for micro-compact and full-sized pistols. Battery and solar power ensure it's always ready to go. A large sight window and multi-reticle customization let you adjust and lock on targets quickly in any light, day or night. Motion activation brings the unit to life when it senses motion and deactivates when idle for 10 minutes, preserving battery life. 3 MOA red dot with 32 MOA circle provides plenty of versatility for targeting. 100% waterproof, fogproof, and shockproof. Side-loading battery compartment. Operates on one CR2032 battery. Includes Picatinny mount, 1 shim plate, custom tool, rubber cover, common mounting screw sets, battery, and TORX T-10 bit. Fully enclosed design for protection from dust, debris, rain, and more 3 MOA red dot with 32 MOA circle Multi-reticle versatility Operates on one CR2032 battery with solar backup Motion activation with 10-minute shutoff 100% waterproof, fogproof, and shockproof Rugged aluminum housing RMSc footprint