The Ruger Rapid Deploy Rear Sight (model 90415) is a backup iron sight engineered for modern sporting rifles like the SR-22, SR-556, and SR-762—and any rifle running a Picatinny rail system. If you shoot an AR-pattern rifle and want a reliable secondary aiming option that doesn't clutter your rail, this spring-loaded, polymer sight folds flat when you're running optics and deploys instantly when you need it.

Built for shooters who understand that iron sights are insurance. Whether you're zeroing in a new optic setup, training on transitions, or simply keeping a backup ready, the Rapid Deploy does one job well: get you on target fast. The windage adjustment lets you dial it in for your rifle, and the lightweight polymer construction means it won't slow you down or add unnecessary weight to your setup.

This sight integrates seamlessly with A2-height gas block and front sight combinations, making it compatible with most popular modern sporting rifle builds. The spring-loaded flip mechanism means no fumbling—push the button and it's ready to shoot. Fold it down when your primary optic is in action and you want a clean sight picture.

Key Features

• Spring-loaded rapid deployment with push-button activation
• Folds flat when not in use—gets out of the way of optics and scopes
• Windage adjustable for zero confirmation and compensation
• Lightweight polymer construction
• Picatinny rail mounted—fits modern sporting rifle standards
• Works with A2-height front sight systems

Specifications

Model	Ruger 90415
Finish	Black
Mount Type	Picatinny Rail
Material	Polymer
Sight Type	Backup Rear Sight
Adjustment	Windage Adjustable
Deployment	Spring-Loaded

Frequently Asked Questions

Will this rear sight fit my SR-22, SR-556, or SR-762?

Yes. The Ruger 90415 is designed specifically for those Ruger rifle models, as well as any modern sporting rifle with a same-plane Picatinny rail system.

Does this sight work with my front sight?

The Rapid Deploy Rear Sight is compatible with A2-height gas block and front sight configurations, which are standard on most modern sporting rifles. Verify your front sight height before purchase if you have a non-standard setup.

Can I use this sight with an optic mounted on my rifle?

Yes. The sight folds completely flat, making room for scopes, red dots, and other optics on your upper rail. Flip it up only when you need it as a backup.

How do I deploy the sight?

The sight is spring-loaded and deploys instantly with the push of a button. Simply press and the sight pops up and locks into position ready to aim.