The HS507C-X3-RD-MRS updates the proven 507C platform with a reinforced 7075-T6 aluminum housing and Holosun&&';;s versatile Multi-Reticle System. Built on the widely adopted RMR footprint, Solar Failsafe, Shake Awake, and a side-loading CR1632 battery deliver dependable operation with extended runtime. Features: Red Multi-Reticle System (MRS)Selectable reticle options include a 2 MOA red dot, 32 MOA circle, or combined circle dot for precision or rapid target acquisition. Red Super LED Technology650nm red emitter provides a crisp reticle with efficient power management and up to 100,000 hours of battery life. Forward-Facing Light SensorIntegrated photodiode automatically adjusts reticle brightness based on surrounding lighting conditions. Solar Failsafe SystemSolar panel provides backup power and assists with brightness management in changing lighting environments. Shake Awake TechnologyMotion activation instantly powers the optic on and powers down during inactivity to preserve battery life. Manual Brightness with Lockout ModeBrightness controls include memory and lockout modes to prevent unintended adjustments during carry or duty use. Side Mounted Battery TrayCR1632 battery compartment allows quick battery replacement without removing the optic from the slide. Extended 100,000 Hour Battery LifeEfficient power management delivers up to 100,000 hours of runtime on a single battery. 7075-T6 Aluminum HousingHard anodized aluminum construction provides durability and strength for everyday carry and range use. RMR Footprint CompatibilityIndustry standard RMR footprint allows direct mounting to a wide range of optics ready pistol slides. In The Box: HS507C-X3-RD Lens Cloth Multi-Tool Manual Warranty Card