Ozark Armament Flip Up Backup Battle Sights Picatinny Mount AR Pattern Flat-top Upper Co-Witness Iron Sights BUIS Milled Aluminum Flip Up Front and Rear Sight Spring Loaded for Quick Deployment Fully Adjustable for Windage and Elevation Co-Witness with Standard AR Optics when Flipped Up Low Profile and Out of the Way When Down Both Precision and CQB Apertures on Rear Sight Standard AR Front Sight Post on Front Backed by Our US Support Team and Full One Year Warranty