The Holosun EPS-CORE-RD3 packs the viewing performance of a full-size EPS lens into a compact RMSc-footprint optic, giving slim pistols a wider, clearer sight picture without extra bulk. Featuring a crisp red 3 MOA dot, it delivers enclosed-optic durability in a streamlined, carry-ready form. A forward-facing light-sensor photodiode automatically adjusts brightness as lighting conditions change, while the enclosed housing protects the optic from dust, rain, and debris to ensure consistent performance in real-world environments. Powered by a side-tray CR1620 battery delivering up to 50, 000 hours of runtime on setting six, the EPS-CORE-RD3 stays ready with Shake Awake technology and secure with Lockout Mode to prevent accidental brightness changes. Built around the RMSc footprint for direct mounting on popular slimline slides, the EPS-CORE-RD3 delivers full-size viewing performance in a compact, purpose-built package. | Holosun EPS CORE 3 MOA Dot Sight in Red