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Trijicon built the HD Night Sight Set to solve a problem every defensive pistol carrier runs into: finding your front sight fast when the lighting isn't ideal. This set pairs a taller front blade wrapped in a glowing orange photoluminescent ring with a blacked-out rear that runs a wider U-shaped notch. The result is a sight picture where your eye snaps right to that orange front dot, whether you're on the range at high noon or clearing a dim hallway. In full dark, both the front and rear lamps light up green tritium, so you keep a proper three-dot picture without a battery or a switch.
The orange front ring is the star here. In daylight and those tricky transitional moments around dawn and dusk, that photoluminescent paint makes the front post pop without washing out the target. The rear sight staying black keeps your focus where it belongs, up front, instead of splitting attention across three matching dots. There's also a steeply hooked front face on the rear sight, which gives you an edge to rack the slide one-handed against a belt or boot heel if a hand is out of commission.
These are machined from solid steel, and each tritium lamp sits inside a silicon-cushioned aluminum housing sealed under a sapphire jewel. That construction shrugs off hard recoil and stands up to cleaning solvents, which is why HD sights have earned a following with law enforcement and everyday carriers alike. Trijicon warrants the green tritium lamps for 12 years from the date of manufacture.
This SG103O set is cut for Sig Sauer pistols that come factory standard with a #6 front and #8 rear, covering models chambered in .40 S&W and .45 ACP. That includes the P220 (dovetail models), P229, P240, P245, P938, Pro233, Pro2340, and Pro245. Double-check your slide's sight configuration before ordering, since Sig runs different heights across calibers, and plan on professional installation for a clean, properly seated fit.
This SG103O set is designed for Sig pistols that use a #6 front and #8 rear, which covers .40 S&W and .45 ACP models like the P220, P229, P240, and P245. Trijicon lists dovetail P365 variants as compatible, but many standard P365 slides use a different sight cut, so several retailers note this particular set will not fit a typical P365. Check your slide's factory sight numbers before ordering to be sure you get the right height.
Yes. The illumination comes from sealed tritium lamps that glow on their own with no battery or charging needed. In the dark both the front and rear dots light up green, and the orange front ring is a photoluminescent paint that stays highly visible in daylight and low light.
The blacked-out rear is intentional. Keeping the rear plain draws your eye straight to the bright orange front post for faster acquisition, rather than dividing your attention across three matching dots. In full dark you still get a traditional three-dot green tritium picture for alignment.
Trijicon recommends professional installation, and it's the smart call. These are dovetailed steel sights that need a proper sight pusher or press to seat correctly without damaging the sight or the slide. Most gunsmiths can knock this out quickly and confirm your point of impact.
| UPC | 719307209831 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | SG103O-600576 |
| Color | Orange Outline |
| Model | |
| Product Type | Sight |
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