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The DXT2 Big Dot in yellow is XS Sights' answer to the classic carry-gun problem: factory sights that are hard to pick up fast under stress. It uses an oversized front dot with a tritium vial at the center, wrapped in a photoluminescent glow dot that soaks up ambient light and keeps glowing before it gets dark enough for tritium to take over. The convex shape of that dot isn't just for looks. The extra surface area grabs more light, which charges the glow brighter and holds it longer. Yellow specifically sits in a reflective part of the light spectrum, so it charges fast and puts out the brightest low-light glow in the DXT2 lineup.
Instead of the traditional three-dot picture where your eyes have to line up two rear dots with a front, the DXT2 runs a shallow V-notch rear paired with the big front dot. XS calls it the dot-the-"i" picture, and once you shoot it, the logic clicks. You drop that fat front dot into the V like setting a golf ball on a tee, and your focus snaps to the front sight and the target instead of fussing with alignment. It's fast, intuitive, and it shines when your attention is naturally pulled downrange.
Every XS night sight is CNC machined from steel bar stock in Fort Worth, Texas. That means no plastic to crack or shift after a few range trips, and the sight body holds up to drops, racking off a belt or barricade, and years of daily carry. The steel is blued to resist rust with regular cleaning and oil, and the rounded profile of the Big Dot won't snag on a cover garment when you draw from concealment. Even at its size, the front sight still clears most holsters.
This set is cut for the slim-frame Glock 42, 43, 43X, and 48, and works across generations including MOS models. The rear uses a slip-fit design held by set screws, so with a little thread locker and a sight pusher or a punch, most folks can knock this out at home in well under fifteen minutes. If wrenching isn't your thing, any competent gunsmith can drop them in quickly.
This set is made for the slim-frame Glock 42, 43, 43X, and 48. It works across all generations of those models, including MOS versions. XS has tested this dovetail design over many years, so you don't need to chase down a Gen 5 or MOS-specific version.
Yellow is the brightest option in the DXT2 lineup for low light. It sits in a reflective part of the light spectrum, so the glow dot charges faster and puts out more light once things get dark. Orange has a slight edge for daytime contrast, but if maximum low-light glow is your priority, yellow is the pick.
Most people can. The rear uses a slip-fit design secured by set screws, and the kit includes the hex wrench and red threadlocker you need. With a sight pusher or a hammer and punch to remove the factory rear, the job usually takes under fifteen minutes plus cure time. A gunsmith can handle it fast too if you'd rather not.
Instead of lining up two rear dots with a front dot, you drop the large front dot into a shallow V-notch rear, like setting a ball on a tee. Your focus goes straight to the front sight and the target rather than fussing with alignment. It's a faster, more intuitive picture, which is exactly what you want under stress when your eyes are pulled downrange.
| UPC | 647533046176 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | GL0011S5Y |
| Color | BIG DOT NIGHT SIGHTS |
| Length | 8.1000 |
| Product Type | Front/Rear Set |
| Shipping Weight | 0.12 |
| Style | Night Sight Set |
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