Ruger 90340 10/22 Fiber Optic Sight Set - Black with Red Front and Green Rear Sights

The Ruger 90340 10/22 fiber optic sight set brings fast target acquisition and reliable aiming to one of America's most popular rimfire rifles. If you shoot a Ruger 10/22 and want sights that work in low light, track fast-moving targets, or simply give you a brighter sight picture than traditional blades, fiber optics are a practical upgrade. This black set pairs a red front sight with a green rear sight—contrasting colors that help your eye settle on the aiming point quickly, whether you're plinking at the range, hunting small game, or running transition drills.

Fiber optic sights gather ambient light and channel it to the sight elements, making them glow without batteries or electronics. That means they're always on, require no maintenance, and work in conditions where iron sights can feel dim or hard to see. The red-and-green combination is popular because the colors provide natural contrast—your brain processes them separately, which sharpens focus on the sight picture itself rather than forcing you to choose between two similar-looking elements.

Ruger's fiber optic sight sets are engineered for the 10/22's receiver and dovetail system, so installation is straightforward for anyone comfortable with basic gunsmithing. Once zeroed, these sights will hold their setting through normal use and cleaning. They're a no-fuss alternative to adding a scope or red dot when you want to keep your rifle's profile lean and your options open.

Key Features

• Red fiber optic front sight and green fiber optic rear sight for high-contrast aiming
• Light-gathering fiber design—no batteries required
• Ruger factory engineering, matched to 10/22 receiver geometry
• Black finish matches standard 10/22 aesthetics
• Works in low-light conditions where traditional sights fade

Specifications

Frequently Asked Questions

Will these sights fit my Ruger 10/22?

Yes. The Ruger 90340 is engineered specifically for the 10/22 receiver and dovetail mounting system.

Do fiber optic sights need batteries?

No. Fiber optic sights work by gathering and transmitting ambient light through the fiber strands. They're always active and require no electronics or charging.

What's the difference between red front and green rear on these sights?

The contrasting colors create a visual separation that helps your eye focus on the aiming point. Red and green are processed by different neural pathways, which can make it easier to maintain sight picture without conscious effort.

Can I install these myself?

The Ruger 10/22 uses a dovetail sight system that's accessible to anyone with basic gunsmithing knowledge and tools. Installation instructions are typically included. If you're not comfortable with sight installation, a local gunsmith can handle it quickly.