Premium Mil Spec Flip Up Front Rear Iron Sights Set Picatinny Rails Flattop A2 Low Profile Mil Spec Aluminum Premium Front and Rear Sights Set Constructed of 6061 Aircraft Grade Aluminum Calibrated and matched together as a set Designed for same plane with low profile rear sight Dual Aperture Micro Low Profile Design Rear Sight: Micro Style Windage knob features same MOA adjustment as standard sight Front Sight: A2 post elevation adjustment Smooth ball bearing pivot detent locks sights in both up and down positions Color: Matte Black Finish 100% Satisfaction Guaranteed