HiViz S300R S-Series Magnetic Front Sight - Black with Red Fiber Optic

The HiViz S300R S-Series magnetic front sight is a no-frills, bright fiber optic sight built for shotgun shooters who want reliable sight picture without the premium price tag. This is the narrow-rib version, sized to fit shotgun barrels with rib widths between .218" and .328" (a common specification for modern shotguns). The red fiber optic element pairs with a black housing for strong contrast and quick target acquisition in field conditions—exactly what you need when upland hunting, clay shooting, or working through a shotgun course.

HiViz designed the S-Series around simplicity: the LitePipes (fiber optic elements) are fixed to each sight model, so there's no swapping or customizing the color once you choose your model. What you get is what you shoot, and that straightforward approach keeps cost down without compromising visibility. The magnetic mounting system grips your rib securely without requiring permanent installation or gunsmithing.

If you shoot a shotgun regularly and want a proven, affordable way to improve your sight picture, the S300R delivers. It's the kind of sight that works, stays put, and lets you focus on the shooting.

Key Features

• Fits narrow shotgun ribs (.218" to .328" width)
• Red fiber optic element for quick, bright sight picture
• Black housing for strong contrast
• Magnetic attachment (no permanent modification required)
• Economical, straightforward design

Specifications

Frequently Asked Questions

What shotgun rib width does the S300R fit?

The S300R is the narrow model in the S-Series line. It fits shotgun ribs between .218" and .328" wide (or 5.5mm to 8.3mm). If your shotgun rib falls outside this range, HiViz also makes an ultra-narrow model (S200) and a wide model (S400).

Can I change the fiber optic color after purchase?

No. The LitePipes on the S-Series are not interchangeable; each sight comes with a fixed color element. The S300R is the red fiber optic version, and that color is permanent to this sight.

How does the magnetic mount work?

The S300R uses a magnetic attachment system that grips your shotgun rib. It requires no drilling, tapping, or permanent modification—you can install or remove it without altering your gun.

Is the S300R good for hunting and clay shooting?

Yes. The bright red fiber optic element is designed to give shotgun shooters a fast, clear sight picture in field and range conditions, making it suitable for upland hunting, clay sports, and shotgun training.