The Holosun EPS-GD2 is an enclosed optic with an aspheric lens and a 2 MOA gold dot for a clear, focused sight picture. Its ultra-low deck height supports iron-sight co-witness, and Shake Awake with Lockout Mode helps manage power and prevent unintentional setting changes. It uses a side-tray CR1620 battery rated up to 50,000 hours of runtime. The optic uses a K footprint and includes an RMR-to-K adapter plate in a 7075-T6 aluminum housing with multilayer reflective glass.