Vism Pro Series Flip-Up Front and Rear Sights (Combo)Features:- Front sight features an A2 front sight post that is fully adjustable for elevation.- Front sight height is designed for handguard rails, monolithic receivers, and gas blocks that are at the SAME height as the AR receiver Picatinny rail.- Rear sight features A2 dual aperture (large & small) that is fully adjustable for windage. Knurled windage knob makes adjusting the windage an easy task.- Rear sight low profile design folds flat, to fit under the majority of scopes.- Aluminum main body with steel A2 front post and A2 rear aperture.- Mounts onto Picatinny Mil-STD 1913 rails, mounting tool included. Specifications:- Finish: Black - Front Sight Dimensions: 2.4L X 1.1W X 0.8H, Weight: 2.0 oz.- Rear Sight Dimensions: 2.4L X 1.2W X 0.8H, Weight: 2.3 oz.