The Holosun HS507C-X3-RD-MRS refines one of the most trusted pistol optics on the market with reinforced durability, enhanced brightness control, and the versatility of Holosun's Multi-Reticle System (MRS). Built from rugged 7075 aluminum and designed around the industry-standard RMR footprint, this compact open-emitter optic delivers a low-profile solution equally suited for everyday carry, duty use, or extended range sessions. Holosun's Multi-Reticle System allows shooters to toggle between a precise 2 MOA dot, a fast-acquisition 32 MOA circle, or a combined circle-dot configuration. Whether prioritizing speed at close range or precision at distance, this optic adapts instantly. A forward-facing photodiode works in conjunction with Solar Failsafe(TM), automatically adjusting brightness in changing light conditions while maintaining battery efficiency. For shooters who prefer direct control, manual brightness settings include memory and lockout modes, ensuring your optic remains exactly how you left it. The side-loading CR1632 battery allows replacement without removing the optic-preserving zero and minimizing downtime. With up to 100,000 hours of battery life, Shake Awake(TM) technology, IP67 waterproofing, and 5000G vibration resistance, this optic is engineered to endure harsh recoil cycles and demanding environments. From concealed carry to duty deployment, the HS507C-X3-RD-MRS is built to perform without compromise. Specifications: Manufacturer: Holosun Model: HS507C-X3-RD-MRS Reticle: 2 MOA dot / 32 MOA circle (Multi-Reticle System) Housing Material: 7075 aluminum Footprint: RMR-compatible Battery: CR1632 (side-loading) Battery Life: Up to 100,000 hours Illumination: Solar Failsafe(TM) with automatic brightness Activation: Shake Awake(TM) technology