The TruGlo Fat Bead (part no. TG948DD) is the largest-diameter fiber-optic bead TruGlo makes for a shotgun or rifle front sight, built as a direct-thread replacement on a 5-40 sight base. Truglo uses a dual-color fiber rod so the bead reads differently depending on lighting or your dominant eye preference, and the oversized 0.120-inch fiber diameter gathers more ambient light than a factory bead, making it easier to find fast on a moving target. It’s a simple thread-in upgrade for anyone whose factory bead has faded or who wants a brighter sighting reference.

Key Specifications

• The largest-diameter fiber-optic bead in TruGlo’s replacement lineup.
• Threads onto a 5-40 sight base.
• Uses a 0.120-inch fiber diameter for maximum light gathering.
• Built as a dual-color fiber optic sight.
• Functions as a front sight bead replacement.

Frequently Asked Questions

What thread size does this sight use? 5-40, matching the factory sight base thread.

How big is the fiber optic rod? 0.120 inch in diameter, TruGlo’s largest bead size.

Buy the TruGlo Fat Bead Fiber Optic Front Sight, 5-40 Dual Color

A faded or narrow factory bead is hard to pick up fast on a moving target, and this oversized dual-color Fat Bead fixes that with a simple thread-in swap. Order it from our Lubbock, Texas gun shop and it ships fast to your door, along with more gun sights.