Truglo's ignite mini green dot features a 2 moa green dot reticle with a 22mm objective.It utilizes digital push-button brightness controls, 10 brightness settings and remembers last used brightness settings.The ignite mini system also features an auto off feature after 4 hours of idle time.The green dot system is constructed of aluminum with nitrogen filled glass.Includes low and high picatinny/weaver rail mounts, battery and rubber lens cover, locking adjustment turretsBattery: AAAMagnification: 1xObjective: 22mmField Of View: UnlimitedEye Relief: UnlimitedDot Size: 2 MOALength: 2.875"Weight: 5.80 oz Low Mount/ 7.00 oz High MountFinish: BlackReticle: 2 MOA Green DotAdjustment Size: 0.50 MOAProofs: Fog/Shock Proof/Weather ResistantOptic Coating: Multi-CoatedWindage Elevation: Adjustable