Vortex Defender-ST Enclosed Solar Micro 1x Red Dot - 3 MOA Dot / 32 MOA Circle - Tough, adaptable, ready for anything - the Defender-ST Enclosed Solar Micro Red Dot gives you a no-quit edge on pistols, shotguns, and carbines. Its ultra-rugged, fully enclosed design protects the emitter against impact and the elements, keeping you on target in any condition. Battery and solar power keep it running as long as you do, while multi-reticle customization let you quickly adjust and lock on targets in any light - day or night - across any platform. Features Enclosed Aluminum Housing - Durable 7075 Aluminum Enclosed Housing Protects Against Debris and Moisture. Multi-reticle - Quickly Adapts To Diverse Shooting Situations. Solar With Auto D-TEC Technology - Detects Light Conditions to Automatically Draw Power From Solar or Battery as Needed. Large Viewing Window - For Fast Target Acquisition and Wide Field of View. Deltapoint Pro Footprint Includes Picatinny Mount Custom Tool Rubber Cover Most Common Mounting Screw Sets CR2032 Battery Lens Cloth Glock MOS Adapter Plate Extended Torx T-10 Bit