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The HiViz TO400 Extra-Wide Two-In-One Magnetic Shotgun Sight fits shotgun ribs measuring .360" to .440" (9–11.1mm). Its magnetic snap-on base and reversible green/orange LitePipes let you switch sight colors by turning the sight around on the rib. Includes round and triangular 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 | TO400 |
| UPC | 613485588620 |
| Product Name | Extra-Wide Two-In-One Magnetic Shotgun Sight |
| Sight Type | Magnetic fiber-optic front sight |
| Fitment | Shotgun ribs .360"–.440" wide (9–11.1mm) |
| Rib Width | 23/64"–7/16" |
| Mounting | Magnetic snap-on base |
| LitePipe Colors | Green and orange |
| LitePipe Shapes | One round and one triangular |
| LitePipe Design | Reversible green/orange LitePipes |
The HiViz TO400 Extra-Wide Two-In-One Magnetic Shotgun Sight is designed for shotguns with wide ventilated ribs measuring .360" to .440" (9–11.1mm). Its magnetic snap-on base attaches behind the factory front bead, offering a convenient way to add a visible fiber-optic sight without replacing the original bead.
The TO400 combines green and orange fiber-optic colors in a reversible design. It includes one round LitePipe and one triangular LitePipe, each offering both green and orange sight colors. To change the visible color, turn the sight around on the rib and reattach it. This lets you adapt your sight picture to your preference and the background without needing separate green and orange sights.
Measure your shotgun rib carefully before ordering to confirm that it falls within the TO400's specified width range. HiViz magnetic sights require a compatible rib and are not suitable for carbon-fiber or aluminum ribs. If your shotgun has a narrower rib, consider the TO200, TO300, or TO350 Two-In-One models according to the measured rib width.