Meprolight Tru-Dot Tritium Green Shotgun Front Bead Sight, 5-40 Thread, Matte Steel

The Meprolight Tru-Dot Tritium Green Shotgun Front Bead Sight is a self-illuminated replacement bead designed to keep your sight picture visible when light runs out. Built with tritium—the same self-glowing technology trusted by law enforcement and military units worldwide—this green-glowing front sight requires no batteries and stays ready whether you're hunting in pre-dawn hours, working through overcast conditions, or responding in true darkness. The 5-40 threaded mount fits standard shotgun bead seats, and the matte steel finish blends with most shotgun finishes while resisting glare.

Unlike standard shotgun beads that fade into shadow, the Tru-Dot's tritium capsule provides consistent, passive illumination for quick target acquisition in low-light scenarios. It's maintenance-free—no charging, no electronics to fail—and delivers the same point-of-aim as your original bead once installed. Whether you're running a home-defense shotgun, hunting late-season upland birds, or pushing performance at low-light range sessions, this sight gives you a reliable aiming reference when conditions turn dim.

Meprolight's reputation in professional sighting systems means this bead meets the same durability standards applied to duty weapons. The tritium will remain usable for years, gradually decreasing in brightness over time. It's a straightforward upgrade that transforms your shotgun's usability in the field or at the range, without requiring gunsmithing or permanent modifications.

Key Features

• Self-illuminated tritium design—no battery or charging required
• Green-glowing tritium for enhanced night visibility and low-light aiming
• 5-40 threaded mount for direct installation on standard shotgun bead seats
• Matte steel construction resists glare and blends with most finishes
• Maintenance-free and proven in law enforcement and military applications
• Immediate sight picture in darkness or poor lighting conditions

Specifications

Frequently Asked Questions

What shotguns does this bead fit?

The 5-40 threaded mount is the standard thread size for shotgun front bead sights. It will fit most shotguns with removable or replaceable beads, including Remington, Mossberg, Winchester, and Browning models. Verify your shotgun uses a 5-40 threaded bead mount before ordering; some tactical or non-standard shotguns may differ.

How long does the tritium stay bright?

Tritium is self-illuminated and requires no charging or batteries. It will gradually diminish in brightness over many years (typically a decade or more), but remains functional and visible in low-light conditions for an extended period.

Can I use this for hunting?

Yes. The Tru-Dot tritium green bead provides a reliable aiming point during pre-dawn and late-evening hunting, when natural light is fading. It's especially useful for upland hunting and situations where you need quick target acquisition in dim conditions.

Do I need a gunsmith to install this?

Installation is straightforward: the 5-40 threaded mount screws directly into your shotgun's bead seat, replacing the original bead. No permanent modifications or special tools are required. If your shotgun has a pinned or soldered bead, you may need professional gunsmithing to remove the old sight first.