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The Hi-Viz M300 is part of the M-Series family of magnetic snap-on front sights, built for shotguns with narrow vent ribs. It uses a strong magnetic base to lock onto ribs measuring .218" to .328" (7/32" to 21/64", or 5.5mm to 8.3mm), so there's no drilling, tapping, or trip to the gunsmith. You just leave your factory bead in place, snap the sight on directly behind it, and slide it forward for a snug fit. That covers a big lineup of popular field guns, including Remington field models, the Browning BPS and Gold 10-gauge, Beretta comp and T-rib guns, Ruger Red Label, Ithaca Model 37, and Benelli and Franchi field shotguns.
The real magic here is the fiber-optic glow. The M300 ships with four replaceable LitePipes in two diameters, giving you green and red options plus the signature Hi-Viz two-toned pipe, which is a green pipe with a red center dot. Green tends to pop against sky and open backgrounds in daylight, while red shines when the light gets flat toward dusk. Swapping them out takes seconds, so you can match the pipe to the conditions and your own eyes.
The knock people always have about snap-on sights is whether they'll stay put. Folks who run these report the magnetic base holds firm through 12-gauge recoil and stays where it's set, whether they're walking fields or swinging on birds. It's a popular pick for turkey barrels and waterfowl guns because a bright front bead makes a real difference when you're trying to settle on a target fast in low light.
At roughly 6.6 inches in overall packaged length and a featherweight build, the M300 adds a genuinely visible aiming point without changing how your shotgun handles. For wingshooters, turkey hunters, and target guys who want a brighter bead without permanent changes to the barrel, it's a simple upgrade that earns its spot.
The M300 is the Narrow model and fits vent ribs measuring .218" to .328" (7/32" to 21/64", or 5.5mm to 8.3mm). It's designed for guns like the Remington field models, Browning BPS and Gold 10-gauge, Beretta comp and T-rib guns, Ruger Red Label, Ithaca Model 37, and Benelli and Franchi field shotguns. Measure your rib width first, and if it falls in a different range, Hi-Viz makes the M200, M400, and M500 to cover ultra-narrow through extra-wide ribs.
Yes. The magnet is strong enough to keep the sight seated through 12-gauge recoil, and users regularly report it stays put while walking, swinging, and shooting. To install, you leave your factory bead on the rib and snap the M300 on directly behind it, then slide it forward snug against the bead so it can't drift back.
The M300 comes with four fiber-optic LitePipes so you can tune the sight to your eyes and the light. Green typically stands out best in bright daylight and against open backgrounds, while red tends to show up better as the light fades. The two-tone pipe combines a green body with a red center dot for a fast, high-contrast aiming point, and swapping any of them takes just a few seconds.
No tools and no gunsmithing required. The whole point of the magnetic snap-on base is that it installs in seconds without drilling, tapping, or any permanent changes to your barrel. That also makes it easy to pull off between seasons or move to another compatible shotgun.
| UPC | 613485584318 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | M300 |
| Color | Green, Red, Two Tone |
| Length | 6.6000 |
| Model | |
| Product Type | Sight |
| Shipping Weight | 0.05 |
| Style | Fiber Optic Bead |
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