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When the light drops off, a plain brass or fiber bead disappears and your aim goes with it. The Meprolight Tru-Dot solves that by dropping a self-illuminated green tritium dot right where your factory bead used to sit. It threads into a standard 5-40 front bead well, so it's a straight swap on popular pump and semi-auto shotguns like the Mossberg 500, 590, and 835, and it plays nice with plenty of other guns that use the same industry-standard thread pitch.
The magic here is tritium. It glows on its own with no batteries, no switches, and no charging under a light first. That means it's ready the second you need it, whether you're clearing a room at 3 a.m. or sitting in a duck blind before sunrise. Meprolight builds these dots to run bright, and the sealed steel body shrugs off recoil, weather, and years of hard use.
This is a front bead only, not a full sight set, and it's the same size class as a traditional bead so it won't crowd your sight picture. Folks who run it appreciate the bigger, easier-to-find aiming point compared to a bone-stock bead, and the green tritium reads clearly once the sun goes down. It's a favorite upgrade for home-defense builds and low-light hunting setups.
Installation is straightforward for anyone comfortable with basic gun work. You thread it into the existing bead hole and snug it up. Depending on your barrel, you may need a thin washer or shim to get the dot indexed perfectly straight, and a little bit of thread locker keeps it from backing out under recoil. Take your time, test fit as you go, and it'll stay put.
Meprolight backs the tritium illumination with a 12-year warranty to the original purchaser, which tells you how long these dots are built to keep shining. For a small, no-fuss part that meaningfully improves your low-light shooting, it's tough to beat.
It threads into any shotgun with a standard 5-40 threaded front bead well, which covers the Mossberg 500, 590, and 835. Because the 5-40 thread pitch is an industry standard, it also works on a number of other shotguns that use the same bead hole. If your gun has a thinner barrel profile, you may need to file the threaded post slightly so it doesn't protrude into the bore.
No. The green dot is powered by tritium, which self-illuminates on its own with no batteries, switches, or exposure to a light source first. That makes it ready the instant you need it, and Meprolight backs the illumination with a 12-year warranty to the original purchaser.
This is the front bead only, not a two-piece set. It's meant as a direct upgrade to your existing factory bead, giving you a glowing green aiming point in the same location. If you want a matching rear, that would be a separate purchase.
It's a manageable job for anyone comfortable with basic gunsmithing. You thread it into the existing bead hole and tighten it down, and many people add a thin brass washer or shim to get the dot indexed perfectly straight. A dab of thread locker keeps it from working loose under recoil, so test fit as you go and snug it up when it's aligned.
| UPC | 840103137353 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 1340443101 |
| Color | GREEN |
| Elevation Adjustment | No |
| Model | |
| Product Type | Sight |
| Shipping Weight | 0.0375 |
| Style | Tritium Front Sight |
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