Ozark Armament Rhino Red Dot Sight - Green Dot Sight - Includes Picatinny Mount - Co-Witness - Reflex Rifle Sight GUARANTEED LIFETIME DURABILITY: Every sight from Ozark Armament is backed by our hassle-free LIFETIME GUARANTEE. Our sights are so durable we practically beg our customers to abuse them. We are a US company with real support: if you need help with our products were here for you. CO-WITNESS CAPABILITY OUT OF THE BOX: Designed to co-witness perfectly with the included cantilever mount with any Ozark Armament iron sight or standard iron sights. The Rhino is easy to sight in and will hold a zero even after thousands of rounds. RED OR GREEN DOT WITH ADJUSTABLE BRIGHTNESS: Five different brightness with green and red settings allowing you to shoot from dusk, day time, dawn, or night time. ULTRA RUGGED, WATERPROOF & FOG PROOF: Sealed optic to prevent dust and moisture from getting inside. Nitrogen purged to prevent fogging. The Rhino Red Dot is guaranteed to work in any condition youd find on Earth and probably even Mars! UNPARALLELED ACCURACY & QUICKNESS : Excels in short and medium range shooting with 4 MOA accuracy. Get on target at incredible speed with the parallax design and wide field of view.