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The HiViz S400-G Wide Magnetic Shotgun Sight features a fixed green fiber-optic LitePipe and magnetic snap-on base for shotgun ribs measuring .328" to .437" (8.3–11.1mm). This S-Series sight provides a bright front-sight reference for shooters who prefer green and do not need interchangeable LitePipes.
Use our Shotgun Rib Width Reference and guide on how to measure shotgun rib width to help determine whether the sight fits your shotgun.
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| Brand | HiViz |
| MPN | S400-G |
| UPC | 613485584615 |
| Product Name | Wide S-Series Magnetic Shotgun Sight |
| Sight Type | Magnetic fiber-optic front sight |
| Fitment | Shotgun ribs .328"–.437" wide (8.3–11.1mm) |
| Rib Width | 21/64"–7/16" |
| Mounting | Magnetic snap-on base |
| LitePipe Color | Green |
| LitePipe | One fixed, non-replaceable green LitePipe |
| Series | HiViz S-Series |
The HiViz S400-G Wide Magnetic Shotgun Sight is designed for shotguns with wider ventilated ribs that fall outside the fitment range of narrower magnetic sight models. Its snap-on magnetic base fits ribs measuring .328" to .437" wide (8.3–11.1mm), providing a convenient way to add a visible front sight without replacing the factory bead.
The S400-G features a green fiber-optic LitePipe that gathers available light to help make the front sight stand out against the target and surrounding background. As part of the HiViz S-Series, it offers a straightforward design for shooters who already know their preferred sight color. The green LitePipe is fixed and is not interchangeable with other colors.
Before ordering, measure your shotgun's rib carefully and confirm that its width falls within the S400-G's specified range. Choosing the correct rib-width model helps ensure proper fit. For the same wide-rib fit with a red LitePipe, look for the S400-R model.