HiViz M400 M-Series Magnetic Front Sight, Black, Green with Red Center Fiber Optic
- Snap-on magnetic base—attaches instantly and securely to vent-ribbed shotgun barrels with wide rib dimensions (fits ribs from 0.328" to 0.437" / 21/64" to 7/16" / 8.3mm to 11.1mm)
- Integrated, high-visibility fiber optic LitePipe—green sight with bright red fiber optic center for fast, unmistakable aiming and tracking
- Includes interchangeable LitePipes—green, red, and HiViz’s unique two-tone (swap colors as preferred for visibility or environment)
- Supplies two LitePipe diameters: green 0.135", red 0.175", two-tone 0.175"—choose larger or smaller for different visual needs
- Black polymer frame—lightweight, low profile, and designed to resist weather, solvents, and hard use
- No permanent installation—detaches easily for cleaning, maintenance, or transfer to other guns
- Ideal for waterfowl, sporting clays, trap, or upland field shooting—improves sight acquisition and shot confidence
- Backed by HiViz’s limited lifetime warranty against manufacturing defects (LitePipes are wear items)
- Fits: Browning Citori target grades, Beretta S682 (Comp, trap), Winchester pumps/autoloaders (post-1964), Mossberg non-ported models, and most standard wide ribbed shotguns
Why choose the M400?
Instantly upgrades visibility and target focus, lets you swap LitePipe color to match light or preference, and installs in seconds with zero tools.
Model: M400
UPC: 613485584325
Color: Black base; green/red center fiber optic
Type: Magnetic front sight, fiber optic
Fits: Wide ribs (.328"–.437")
Interchangeable LitePipe colors: Green, Red, Two-tone
| MANUFACTURER | HI VIZ |