About this item Make sure this fits by entering your model number. 33mm Lens Wide ViewReflex sight with 33mm lens provides wide field of view for rapid targeting. Anti-reflective multi-layer coatings enhance image clarity and increase light transmission during low light situations,helping you see more clearly. Red Illuminated & Multiple ReticlesRed dot reflex sight with 4 reticle shapes and 7 brightness settings, provide various choices in different occasions, like sunny, cloudy day. The push-button design makes brightness adjustment easier. Parallax Corrected and Unlimited Eye-reliefNo matter which way you shift your gaze, the position of the target will not change on the crosshair,improving the accuracy of holographic sights. Easy Adjustment and InstallationPrecision elevation and windage adjustments are easily and fully adjustable so you'll never have a problem obtaining an accurate zero. Cvlife red dot sight comes with standard profile 20mm Picatinny mounting base, easy to install. Long Battery LifeLow power consumption of red dot optics for over 200 hours battery life. The two-hour auto-power shut-off feature makes you no worry to forget turn it off.