Description
Trijicon built the HD Night Sights around one simple idea: your eye should find the front sight instantly, no matter what the light is doing. On this set for the M&P Shield, the front blade runs a green tritium lamp wrapped in a bright orange photoluminescent ring, so it grabs your focus during the day and glows on its own when the sun goes down. The taller front blade sits proud above the rear notch, giving you that front sight dominance that makes the whole sight picture snap together when you don't have time to think about it.
What Sets These M&P Shield HD Sights Apart
The rear sight skips the third dot game and goes with a blacked-out, wide U-shaped notch that frames the front sight instead of competing with it. Two green tritium lamps ride on the rear wings for a true three-dot picture in the dark, while the daytime view keeps your eye where it belongs. The front face of the rear sight is steeply hooked, which means you can rack the slide one-handed against a belt or holster if you ever need to. Tritium is battery-free and always on, and each lamp is sealed under a sapphire jewel and cushioned in an aluminum housing to shrug off recoil and cleaning solvents.
Fitment for Your Shield
This SA139-C-600722 set is cut specifically for the Smith & Wesson M&P Shield in 9mm, .40, and .45, plus the Shield M2.0 and Shield Plus. The one exception is the M&P Shield EZ, which uses a different slide cut and won't take these. It's always worth confirming your exact model before you order since Shield variants aren't all the same underneath.
Install and Longevity
These press into the factory dovetails, and while some folks knock them out at home with a sight pusher in about twenty minutes, Trijicon recommends professional installation to keep everything square. The green tritium lamps carry a 12-year warranty from the date of manufacture, so you're looking at years of dependable low-light performance from a company that's been building any-light aiming systems since 1981.
Key Specifications
- Manufacturer: Trijicon
- Model: HD Night Sights
- Manufacturer Part Number: SA139-C-600722
- UPC: 719307211957
- Fits: S&W M&P Shield 9mm/.40/.45, Shield M2.0, Shield Plus (excludes Shield EZ)
- Style: 3-Dot
- Front Sight: Green Tritium, Orange Photoluminescent Outline
- Rear Sight: Black Outline U-Notch, Two Green Tritium Lamps
- Illumination: Battery-Free Tritium
- Lamp Protection: Sealed Sapphire Windows, Aluminum Housing
- Front Sight Width: 0.144 in
- Front Sight Height: 0.252 in
- Rear Sight Height: 0.352 in
- Elevation Adjustable: No
- Tritium Warranty: 12 Years from Date of Manufacture
What’s Included
- Front sight (green tritium with orange photoluminescent outline)
- Rear U-notch sight (black outline with two green tritium lamps)
Frequently Asked Questions
Will the Trijicon HD Night Sights fit my M&P Shield?
This set is cut for the S&W M&P Shield in 9mm, .40, and .45, along with the Shield M2.0 and Shield Plus. The M&P Shield EZ is the one to watch out for, since it uses a different slide cut and won't accept these sights. Since Shield variants differ underneath, it's smart to confirm your exact model before ordering.
Do these night sights need batteries?
No batteries at all. The glow comes from tritium lamps, which are self-luminous and always on, so there's nothing to charge or replace. The orange front ring is photoluminescent, meaning it soaks up ambient light during the day for a bright, high-contrast aiming point.
Why does the rear sight only have two dots and a black notch?
The HD setup blacks out the rear notch on purpose so your eye locks onto the orange front dot instead of splitting attention across three matching dots. The wide U-shaped notch frames that taller front blade for faster alignment, while the two rear tritium lamps still give you a full three-dot picture in total darkness. It's a design meant to speed up front sight focus when things get fast.
Can I install the Trijicon HD sights myself?
They press into the factory dovetails, and plenty of owners handle it at home with a proper sight pusher tool. That said, Trijicon recommends professional installation to make sure everything seats square and stays aligned. A gunsmith can knock it out quickly if you'd rather not risk your slide.






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