Ruger 90415 Rapid Deploy Rear Sight Rifle Polymer Black

Ruger 90415 Rapid Deploy Rear Sight Rifle Polymer Black. The Ruger folding rear sight seamlessly integrates on any rifle 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. Complete assembly instructions, zeroing procedures and adjustment procedures are included in the packaging.