Hiviz Magnetic Front Shotgun Sight, M-Series Wide Rib Fit, Fiber Optic Green/Red – M400

Product Description

The Hiviz M400 M‑Series Magnetic Front Shotgun Sight delivers fast target acquisition and a bright, highly visible aiming point for ribbed shotguns. Built on a snap‑on magnetic base, this wide‑rib model fits rib widths from .328 to .437 inches (8.3–11.1 mm). It ships with green, red, and the uniquely Hiviz two‑toned LitePipe to tailor your sight picture to varying light conditions. Durable construction and interchangeable fiber optics make it a versatile upgrade for clays, upland, and range work.

Product Highlights

• Magnetic, snap‑on front sight for ribbed shotguns; installs in seconds without tools
• Wide‑rib fit: .328–.437 inch (21/64–7/16; 8.3–11.1 mm) for broad shotgun compatibility
• Includes green, red, and two‑tone Hiviz LitePipes for customizable visibility
• Bright fiber optic aiming point for faster acquisition in diverse lighting
• Steel construction with durable design for field and range use

Specs

• Model: M400 (M‑Series wide‑rib magnetic front sight)
• Rib Fit: .328 to .437 inch (21/64 to 7/16; 8.3–11.1 mm)
• Fiber Diameters: Two‑tone 0.175 mm; Green 0.135 mm; Red 0.175 mm
• Material: Steel
• Weight: 0.5 oz
• Compatibility: Fits many Winchester (post‑1964 pumps/autoloaders), Mossberg (non‑ported), Browning Citori target grades (except super‑wide ribs), and Beretta S400‑R (S682 Comp, trap guns)
• UPC: 613485584325
• Manufacturer Part Number: M400
• Brand: Hiviz

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