TruGlo Fat Bead Shotgun 3mm Red Fiber Optic Front Sight

The TruGlo Fat Bead shotgun front sight is a large-diameter fiber optic bead replacement built for fast, intuitive target acquisition on any shotgun fitted with a 3mm threaded front bead base. The bright red fiber optic element gathers ambient light to deliver a vivid aiming point in low-light and field conditions, making it a go-to upgrade for hunters, sporting-clay shooters, and tactical shotgun users.

At the heart of the Fat Bead is a CNC-machined steel body finished in black, sized to stand up to the recoil of heavy field and slug loads while staying light on the rib. The single-color fiber measures 0.100" in diameter with a 0.5" fiber length, producing a bold, easy-to-pick-up sight picture that helps track moving targets across the barrel.

Installation is straightforward: simply unscrew the factory front bead and thread the Fat Bead into any shotgun with a 3mm bead base. TruGlo's FAT-BEAD line is widely used as a direct replacement for OEM front beads that have dimmed, cracked, or been lost in the field, giving tired shotguns a refreshed sight picture without gunsmith work.