Sniper Scope LT4-16x40AOL with Side R/G/B Ill,qta W/e,ring,flip Open Lens Cover Crystal clear multi-coated lens for excellent glare reflection and maximum light transmission Red, Green, Blue Illuminated Mil-Dot Reticle / Ball and Bearing Windage / Elevation Adjustment Nitrogen filled Airgraft grade aluminum, making lenses Shockproof, Waterproof, and Fogproof uick tactical zero locking/resetting target turrets for windage and elevation adjustment at 1/4 moa per click Parallax adjustment/front AO feature allows for fine-tuning of target image, and 2.5" removable shade