Optimized for all purpose versatility, Liberty II features a 24mm window and modern body design to complement its universal RMR footprint. Liberty II offers 10 illumination settings for clear visibility in any light condition and utilizes Swampfox Shake N' Wake auto on/off functionality to conserve battery life for anytime readiness. Crafted from 7075-T6 aluminum, the optic body and hood have been enhanced to safeguard the upgraded internals and larger, recessed window. From home to the range and everywhere in between, Liberty II is an adaptable optic solution for any use and platform. Brightness Settings : 10 settings Finish : Black Mount : Direct Night Vision Compatible : Yes Power Supply : (1) CR 1632 Lithium Battery Reticle : Multi-Reticle System Weight : 0.1 lbs