The AR Optic Scope features fully-multi coated lenses which deliver crisp images in every lighting condition. It utilzies a PCL lightning quick power which changes with the Throw Down PCL lever that can be customized with two different heights. The AR Optic Scope also has waterproof construction with nitrogen pruged fog-proofing. This 1-4x24mm model has a 30mm tube diameter, Illuminated BTR-2 reticle, and black matte finish.The feature-packed AR Optics 1-4x24 gives you the features you need to outfit your AR with a capable and fast-deploying optic. Illuminated BTR-1 FFP with holds out to 500 yd with 5.56 NATO. Exposed turrets allow you to dial for windage and elevation adjustments quickly and accurately, and the Throw Down PCL makes magnification changes almost instant. The IPX7 waterproof rating and fully multi-coated optics make this an outstanding value, and its compact size make it perfect use with offset irons or red dot sight. Features: Fully multi-coated - multiple layers of anti-reflective coating on all air-to-glass surfaces deliver bright, high-contrast images Clarity - fully-multi coated optics deliver crisp images in every lighting condition Features a throw down PCL power change lever that you can set to two different heights, making these scopes as customizable as the rifles you mount them on Bushnell lifetime ironclad warranty, the ironclad warranty is a full lifetime warranty that covers the lifetime of this product - requires no registration and is fully transferrable Fixed parallax adjustment Fixed at 100 yd parallax adjustment range 6 Mil travel per rotation Exposed elevation and windage turret