Our custom-designed Ruger Rapid Deploy Rear Sight seamlessly integrates on the Ruger SR-22 Rifle AR-556 SR-556 SR-762 and other firearms with a same-plane Picatinny rail mounting system. The rear sight can be used in conjunction with most A2-height gas block/front sights. This lightweight polymer sight is windage-adjustable; folds flat to make room for optics and is spring-loaded to allow for rapid deployment with the push of a button.