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XS built the DXT2 Big Dot around one simple idea: your eye finds the front sight fast, no matter the lighting. The oversized 0.188" front dot pairs a tritium vial with a photoluminescent yellow glow ring, and it sits above a shallow V-notch rear for a clean, uncluttered picture. Line up the front dot in the rear V and you get the intuitive "dot-the-i" sight picture that keeps you from confusing your front and rear sights when things get hectic. This set fits S&W M&P 9mm, 40, and 45 pistols in Full Size, Compact, and M2.0 configurations.
Color choice matters here, and yellow is the pick for low-light glow. It's highly reflective and charges the photoluminescent dot faster than any other color, so it soaks up ambient light and keeps glowing before it's dark enough to rely on the tritium alone. Between the glow ring and the tritium insert, the front sight stays lit through dusk, indoors, and full dark. The convex shape of the Big Dot adds surface area, which pulls in more light and pushes the brightness up a notch.
Every XS night sight is CNC machined from steel bar stock in Fort Worth, Texas. That steel construction shrugs off drops, racking off a barricade, and years of holster wear. The rounded profile has no sharp edges to snag clothing on the draw, and even at its size the front sight still clears most holsters. The green tritium rear carries a white outline to help you pick it up quickly, while the front runs green tritium under that yellow ring.
Installation is a DIY-friendly job with a hammer and punch, or you can have a gunsmith set them for you. If your eyes aren't what they used to be, or you just want a front sight that's dead simple to find under stress, the Big Dot is one of the fastest sighting systems out there.
This set fits S&W M&P 9mm, 40, and 45 pistols in Full Size, Compact, and M2.0 configurations. It's built specifically for the standard M&P sight cuts, so double-check that your model matches before ordering. If you carry an M&P Shield or Shield EZ, XS makes a separate DXT2 set for those frames.
Yellow is the better pick for low-light glow. It's more reflective and charges the photoluminescent dot faster, giving you the brightest glow before the tritium takes over in full dark. Orange contrasts a little better in bright daylight, so it comes down to whether you prioritize nighttime glow or daytime contrast.
You place the round front Big Dot directly above the tritium bar in the shallow V-notch rear, forming a lowercase "i." It gives your eye a single, obvious point to focus on and keeps you from mixing up the front and rear sights under stress. Most people find it faster and more intuitive than lining up traditional three-dot sights.
Yes, these are a DIY-friendly job with a hammer and punch, and the set comes with red thread locker and written instructions. That said, sight installation takes care and the right tools to avoid marring the slide. If you'd rather not risk it, any gunsmith can drift them in quickly.
| UPC | 647533046190 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | SW0029S5Y |
| Product Type | Front/Rear Set |
| Shipping Weight | 0.154 |
| Style | Night Sight Set |
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