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The Hi-Viz LiteWave H3 takes one of the smartest ideas in handgun sights and puts it on your M&P Shield: tritium plus fiber optic in a single front sight. The green tritium keeps that front dot glowing in the dark, while the surrounding white ring and Hi-Viz LitePipe technology grab daylight and pull your eye straight to the front sight. You get true 24-hour visibility without swapping anything or charging a battery.
What really sells people on this setup is how fast the front sight jumps out. The bright white ring around the front makes it easy to find in a hurry, and there's plenty of black space around the dots so you can still get a clean, edge-focused sight picture when precision matters. It's a proven layout that works just as well punching paper at the range as it does in a defensive role.
These are all-steel front and rear sights, not plastic, so they're made to take a beating from daily carry, holstering, and range abuse. The tritium is fully encapsulated for durability, and Hi-Viz backs the tritium with a 12-year warranty against total loss of illumination from the date stamped on the sight. That's the kind of longevity you want out of a set you're trusting for defense.
This MPSN421 set fits the M&P Shield in 9mm, .40 S&W, and .45 caliber, and it duplicates factory sight height so it plays nice with standard holsters and accessories. Just note it does not fit CORE, M&P 22, or M&P long slide models. Like most steel pistol sights, these press into the dovetails, so a sight pusher or a trip to your local gunsmith makes install a whole lot easier and keeps everything lined up right.
This MPSN421 set is made for the Smith & Wesson M&P Shield in 9mm, .40 S&W, and .45 caliber. It does not fit CORE, M&P 22, or M&P long slide models. If you're running a standard Shield, you're good to go.
Yes. The front sight uses green tritium that glows on its own without any charging, so you get a bright aiming point in total darkness. During the day, the fiber optic and white ring take over for a fast, high-visibility sight picture, giving you true 24-hour performance.
They should. The LiteWave H3 duplicates factory sight height, so it's designed to fit standard holsters and accessories the same way your original sights did. That's a big plus if you don't want to rebuy gear.
These are all-steel sights that press into the slide's dovetails, so a proper sight pusher tool makes the job much smoother. If you don't have the equipment, having a gunsmith do the install is the safest bet to avoid marring the slide and to get your windage set correctly.
| UPC | 613485589801 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | MPSN421 |
| Color | Green, White |
| Model | |
| Product Type | Sight |
| Shipping Weight | 0.06 |
| Style | 3 Dot Sights Set Tritium Front |
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