Fold compactly to both sides of the rifle; With an ambidextrous sight base, the sights work seamlessly with magnified optics; Easy to install and deploy, the sights position apertures at factory height; Stainless-steel cross-locking system ensures sight remains upright and zeroed under extreme combat conditions; Note: Sight is designed to work on same plane rail systems only. Will not work with a railed gas block that is higher or lower than the receiver