The custom-designed Ruger(R) folding Front Sight seamlessly integrates on the Ruger(R) SR-22(R), the Ruger(R) SR-556(R), SR-762(R), and any modern sporting rifle with a same-plane Picatinny rail mounting system. This lightweight, polymer sight is elevation-adjustable; folds flat to make room for optics and is spring-loaded to allow for rapid deployment with the push of a button. RSR -