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Trijicon HD Night Sights for Glock – Yellow Front Outline (GL101Y)

UPC: 719307209640

$125.99

13 in stock

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Description

The Trijicon HD Night Sight set takes one of the most common upgrades on a carry or duty Glock and does it right. This is the yellow front outline version, built around a tall front blade with a photoluminescent yellow ring surrounding a green tritium lamp. That combination gives your eye an easy target to lock onto in daylight, dusk, and full dark. The rear sight is deliberately kept plain with a black finish and a wider U-shaped notch, which lets the front dot pop instead of competing with three matching dots.

What Sets the HD Yellow Front Apart

Trijicon designed this set for fast front-sight acquisition in changing light, which is exactly the situation most defensive and duty shooters worry about. The tritium is self-luminous, so there are no batteries to charge or swap. Each lamp sits inside a protective aluminum cylinder with silicone rubber cushioning to handle recoil, and it's capped with a sapphire jewel that spreads the light evenly and shields the vial from punctures and cleaning solvents. A protective clear coat over the paint helps the outline stay bright through years of range time and holster wear.

Handy Details on the Trijicon HD Sight Set

The front face of the rear sight is steeply hooked, which is a small feature that pays off if you ever need to rack the slide one-handed against a belt, holster, or boot heel. It's the kind of thing you don't think about until you need it. The green tritium lamps carry a 12-year warranty from the date of manufacture, and the sights themselves are backed by Trijicon's limited lifetime warranty.

Fitment covers a broad list of standard-frame Glocks, including the 17, 17L, 19, 22 through 28, 31 through 35, and 37 through 39. These are not cut for the MOS platform. Installation is straightforward with a sight pusher for the rear and a Glock front-sight nut driver for the front, and a dab of thread locker on the front screw is smart insurance. If you'd rather not tackle it yourself, any competent gunsmith can knock it out quickly.

Key Specifications

  • Manufacturer: Trijicon
  • Manufacturer Part Number: GL101Y / 600540
  • UPC: 719307209640
  • Sight Style: 3-Dot
  • Front Sight: Green Tritium with Yellow Photoluminescent Outline
  • Rear Sight: Green Tritium with Black Outline, Wide U-Notch
  • Illumination: Tritium (self-luminous, no batteries)
  • Frame Material: Metal
  • Frame Color: Black
  • Front Sight Width: 0.144 in
  • Front Sight Height: 0.268 in
  • Rear Sight Height: 0.321 in
  • Glock Fit: 17, 17L, 19, 22-28, 31-35, 37-39 (not MOS)
  • Tritium Warranty: 12 years from date of manufacture
  • Sight Warranty: Limited Lifetime
  • Country of Origin: Made in USA

What’s Included

  • Trijicon HD front sight (green tritium, yellow outline)
  • Trijicon HD rear sight (green tritium, black outline)
  • Front sight screw

Frequently Asked Questions

Will these Trijicon HD sights fit my Glock?

This set fits a wide range of standard-frame Glocks, including the 17, 17L, 19, 22 through 28, 31 through 35, and 37 through 39. It is not designed for the MOS optics-ready platform. If you're unsure about your exact model, check your slide against the fitment list before installing.

Do the Trijicon HD night sights need batteries?

No. The green dots use tritium, which is self-luminous and glows on its own for years without any power source. Trijicon backs the tritium lamps with a 12-year warranty from the date of manufacture, so they'll stay visible in the dark well into the future.

Why is the front outline yellow while the rear stays black?

The yellow photoluminescent ring around the front lamp is meant to grab your eye fast in daylight and transitional light. The rear sight is left black with a wide U-notch on purpose, so it doesn't compete with the front and keeps your focus exactly where it should be. This front-focused setup speeds up sight acquisition compared to a matching three-dot layout.

Can I install the Trijicon HD sights myself?

Yes, if you're comfortable working on your Glock. The rear sight presses into the dovetail with a sight pusher, and the front sight uses a Glock front-sight nut driver. A dab of thread locker on the front screw helps keep it put, and some sights may need very light filing for a snug fit. If you'd rather not risk marring your slide, a gunsmith can handle it in a few minutes.

Additional information

UPC

719307209640

Manufacturer

Manufacturer Part Number

600540

Color

Yellow Outline

Length

7.1

Model

Package Height

0.7

Package Width

5.1

Product Type

Tritium Front/Rear

Shipping Weight

0.1125

Sights

Yellow Front and Black Rear

Style

3-Dot

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