FUNCTIONAL, PRACTICAL, AND FULLY ADJUSTABLE: Our flip up iron sights provide a perfect co-witness with any low profile optic, Fully adjustable for windage and elevation allowing for precision placement using sturdy, easy to handle dials, Flips down until needed. HEAVY-DUTY METAL CONSTRUCTION: Each iron site set is constructed of durable metal for a lifetime of use. Tight tolerances gives a secure fit to any standard picatinny rail. Stay in the fight with our spring loaded flip up back up picatinny iron sights.