The Holosun AEMS-MACRO-RD is a full-size enclosed pistol red dot designed for users who want a large viewing window, sealed emitter, and versatile Multi-Reticle System. Its 0.9 A- 0.9-inch viewing window provides a generous sight picture, while the enclosed emitter helps protect the optical path from rain, debris, and condensation. The red Multi-Reticle System (MRS) combines a 2 MOA dot and 32 MOA circle, allowing the shooter to select the dot, circle, or combined reticle according to the application. Automatic brightness adjustment uses a forward-facing light sensor to adapt the reticle to changing conditions, while Solar Failsafe provides supplemental operation in available light. A side-loading CR1632 battery is rated for up to 100,000 hours, and Shake Awake helps conserve power during inactivity. Memory Mode retains the last brightness setting, while Lockout Mode helps prevent accidental adjustments. The hard-anodized 7075-T6 aluminum housing is IPX8 waterproof and rated for 5000G vibration resistance. Standard Holosun 509T mounting plate compatibility provides broad compatibility with pistols using that mounting standard. Specifications Model: AEMS-MACRO-RD Reticle: 2 MOA Dot / 32 MOA Circle MRS Reticle Color: Red Footprint: Holosun 509T Window Size: 0.9 A- 0.9" Emitter Type: Closed Emitter Battery: CR1632 3V Lithium Coin Battery Life: Up to 100,000 hours Brightness Settings: 12 Click Value: 1 MOA Housing Material: 7075-T6 Aluminum Finish: Hardcoat Anodized Waterproof Rating: IPX8 Vibration Resistance: 5000G Night Vision Compatible: Yes Weight: 2.5 oz. Get the Holosun AEMS-MACRO-RD at Battlehawk Armory!