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The XS DXW Big Dot Night Sight set (SW0019S3) is a defensive-focused upgrade for Smith & Wesson M&P pistols that solves the number one problem in low light and high stress: finding your front sight fast. Instead of the usual three-dot picture, you get one big green tritium dot up front wrapped in a reflective white outline, paired with a shallow V rear that carries a single white stripe. Line up the dot over the stripe like you're dotting an "i" and you're on target. It's an intuitive system that rewards speed, which is exactly what you want on an everyday carry gun.
The front dot measures 0.188" in diameter, big enough that your eye locks onto it without hunting, even when your focus wants to jump to the threat downrange. The reflective white ring bounces ambient light during the day, while the green tritium insert keeps it glowing after dark. The rear is a low-profile, snag-free V-notch with no tritium, which is by design. It gives you a wide, unobstructed view down range so nothing competes with that front dot. This setup shines at typical defensive distances inside 15 yards, where getting a fast, combat-effective hit matters more than a tight bullseye group. It's also a favorite for folks with aging eyes who struggle to pick up smaller factory sights.
These are CNC machined from solid steel bar stock at XS Sights' shop in Fort Worth, Texas, and the tritium is backed by a warranty covering illumination for 12 years. The 0.188" front dot fits in common holsters, so you shouldn't have to rework your carry rig.
This set covers the S&W M&P, M&P M2.0, M&P Compact, and M&P M2.0 Compact in 9mm, .40 S&W, and .45 ACP, and it also fits SD9VE and SD40VE pistols. Installation is straightforward for anyone comfortable working on a slide, though the front sight can occasionally need a little filing to fit the dovetail snugly. XS recommends a hammer and punch rather than a press-style pusher tool, and red threadlocker is included for the rear set screws. If you'd rather not tackle it yourself, any gunsmith can knock it out in a few minutes.
Yes. This SW0019S3 set is cut for the S&W M&P, M&P M2.0, M&P Compact, and M&P M2.0 Compact in 9mm, .40 S&W, and .45 ACP. It also fits the SD9VE and SD40VE. If you have a Shield or an optics-cut slide, double-check your model since those use a different part number.
They're built for speed and fast target acquisition inside about 15 yards, which is where most defensive shooting happens. Plenty of people run them well past that with practice, but the big dot picture favors quick, combat-effective hits over tiny bullseye groups. If precision at distance is your main goal, a traditional notch-and-post may suit you better, but for carry and low-light use these are hard to beat.
If you're comfortable working on a slide, yes. XS recommends a hammer and punch rather than a press-style sight pusher, and the front sight sometimes needs a little filing to seat snugly in the dovetail. Red threadlocker comes in the box for the rear set screws, and if you'd rather leave it to a pro, a gunsmith can handle it in just a few minutes.
No, only the front Big Dot has a tritium insert. The rear V-notch uses a white stripe instead, which is intentional so your eye isn't confused between front and rear in the dark. That single glowing dot up front is what you're meant to focus on for the fastest sight picture.
| UPC | 647533036337 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | SW0019S3 |
| Product Type | Front/Rear Set |
| Style | DXW Tritium Front | i Dot/Low Profile V Rear |
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