The Hi-Viz M400 M-Series is a snap-on magnetic front sight designed for use on shotgun ribs. It provides a fiber-optic aiming reference and is built to fit a range of rib widths used on many field and competition shotguns. The sight is intended to be a quick, removable option for shooters who require a visible front reference without permanent modification.
Key Specifications
- This product is the Hi-Viz M400 M-Series magnetic front sight.
- It fits shotgun ribs measuring .328 to .437 inches (21/64″ to 7/16″).
- The base uses a snap-on magnetic attachment for rib mounting.
- Compatibility is listed with Winchester post-1964 pumps & autoloaders; Mossberg non-ported models; Browning Citori target grades (except super wide ribs); and Beretta S682 Comp.
- The sight is categorized as a fiber optic front product type.
- The product includes interchangeable LitePipes in red and green colors.
- Frame material is specified as polymer and the frame color is black.
- Overall dimensions are listed as 0.45 x 3.90 x 6.60 inches.
- The unit is noted as interchangeable to adapt to different light conditions and shooter preference.
Compact and uncomplicated, the Hi-Viz M400 M-Series wide magnetic front sight offers a removable fiber-optic reference for shooters who need a visible and adaptable front sight on compatible shotgun ribs. Its snap-on magnetic mount and interchangeable LitePipes make it a practical choice for field use and target work where a non-permanent, easily adjusted front sight is preferred.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




