These sights have an ambidextrous sight base which means they work seamlessly with magnified optics. They are very simple to install and it's easy to deploy these sights position apertures at factory height. They fold compactly to both sides of the rifle. The stainless-steel cross-locking system makes sure that the sight is always upright and zeroed under extreme combat conditions. Note: This sight is designed to work on same plane rail systems only. It will not work with a railed gas block that is higher or lower than the receiver.