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The Hi-Viz S400-R is the wide model in the S-Series line of magnetic shotgun sights, and it does one job really well: it gives you a bright, easy-to-pick-up front reference on ribs measuring .328" to .437" (that's 21/64" to 7/16", or 8.3mm to 11.1mm for the metric crowd). It carries a single red LitePipe that pulls in ambient light and glows, so your eye locks onto it quicker than a flat black bead ever lets you. If you've ever lost your bead against a dark treeline or a fast crossing target, you already know why folks reach for one of these.
The wide S400 base is built for shotguns like Winchester post-1964 pumps and autoloaders, non-ported Mossberg models, Browning Citori target grades (outside of the super-wide ribs), and the Beretta S682 competition and trap guns. The magnetic base snaps on and holds tight, no tapping, no drilling, no permanent changes to your barrel. It's a genuinely tool-free setup, which makes it easy to move between guns or pull off entirely when you're done.
Red tends to stand out beautifully against green backdrops and lighter targets, which is part of why it's a go-to for trap, sporting clays, and upland hunting. The S-Series is the most straightforward option Hi-Viz makes, meaning what you see is what you get: one fixed red pipe, no swapping colors. That keeps things simple and affordable if you already know red is your color.
Hi-Viz wraps its LitePipes in tough resin and polymer so the fiber survives real range and field use while still letting light reach the pipe. It's a small piece of kit that punches above its weight, and it's backed by Hi-Viz's limited lifetime warranty on manufacturing defects. Just remember the LitePipe itself is considered a wear item, so after years of hard use it may eventually need refreshing.
The wide S400 base fits ribs measuring .328" to .437", which covers Winchester post-1964 pumps and autoloaders, non-ported Mossberg models, Browning Citori target grades outside the super-wide ribs, and Beretta S682 competition and trap guns. Grab a caliper or a ruler and measure the width of your rib before ordering to be sure you're in that range. Hi-Viz also keeps a shotgun application chart if you want to double-check your exact model.
The base uses a strong magnet that grips the steel rib and holds through repeated shots. Plenty of clay and hunting folks run these season after season without issues. If you're worried about it walking loose, seat it firmly and it'll stay put where you set it.
No, the S-Series is the economical Hi-Viz line and the red LitePipe is not interchangeable, so what you see is what you get. If you want the option to switch between green, red, and two-tone pipes, look at the M-Series (M400) instead, which fits the same rib width. The S400-R is the simple, budget-friendly pick for shooters who already know red is their color.
Not at all. The magnetic base snaps right onto your rib with no tools, drilling, or tapping, and it comes off just as easily. That makes it simple to move between guns or remove for cleaning and storage.
| UPC | 613485584622 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | S400-R |
| Product Type | Sight |
| Model | |
| Color | RED |
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