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The Truglo Fat Bead Universal Replacement Sight with 2.6mm thread is a red fiber optic front bead designed to breathe new life into shotguns that have seen hard use or simply need a brighter aiming point. Whether you're running a reliable pump gun at the range or heading afield for upland or waterfowl, a worn or dim factory bead can kill your sight picture and waste shells. This replacement sight drops in where your original bead lived, so long as your shotgun uses the industry-standard 2.6mm thread, and delivers the famous Truglo fiber optic brightness—no batteries, no excuses, just red that glows in sunlight and shadow alike.
Red fiber optic beads have become the go-to upgrade for shotgunners who want to pick up their target faster and shoot more confidently. The fat bead profile gives you a generous aiming point without obscuring your quarry, and the universal design means you're not locked into a single brand or model. If your shotgun's front sight is threaded 2.6mm and you're tired of squinting at a dark or dinged-up bead, this is a straightforward, affordable fix.
Installation is simple: unscrew the old bead, thread on the new one, and get back to shooting. No gunsmithing, no special tools. Truglo's fiber optic sights have earned their reputation on thousands of shotgun barrels, and this replacement bead keeps that tradition alive for hunters and clay shooters who demand reliable, visible aiming assistance.
| Thread Size | 2.6mm |
| Bead Color | Red |
| Sight Type | Fiber Optic Front Bead |
| Brand | Truglo |
The Truglo Fat Bead Universal Replacement Sight is designed for shotguns with a 2.6mm threaded front sight. Before purchasing, verify that your shotgun's bead uses a 2.6mm thread. Many popular pump and semi-auto shotguns do, but it's worth checking your manual or the existing bead if you're unsure.
Fiber optic beads gather ambient light and glow brightly without batteries, making your aiming point visible in low light, heavy cover, and bright sunlight. Red is a popular choice because it offers high contrast against most backgrounds and game birds, helping you acquire your target quickly and shoot with confidence.
Simply unscrew your old bead by turning it counterclockwise, then thread the new Truglo bead on clockwise until snug. No tools, gunsmithing, or special installation steps needed—just tighten by hand or with your fingers until it's secure.
This sight is universal in the sense that it fits any shotgun with a 2.6mm threaded front sight post. The 2.6mm thread is a standard dimension used across many shotgun manufacturers, but always verify your shotgun uses 2.6mm threads before ordering to ensure compatibility.

SKU: 115813824 • Width: 3.8in • Height: 0.2in • Depth: 3.9in • Weight: 0.02oz