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The Hi-Viz LiteWave H3 is one of those upgrades that just makes sense the first time you draw at dusk. It combines two proven technologies into a single sight set: tritium for glowing in the dark and Hi-Viz LitePipe fiber optics for grabbing available light during the day. The result is a sight picture that stays sharp whether you're at the range at noon or checking a noise in the house at 2 a.m. This particular set (model XDN521) runs a green tritium front sight wrapped in a bright orange fiber-optic ring, paired with a green rear, so your eye snaps to the front post exactly where it should.
The orange front ring is the real trick here. In good light, that fiber-optic ring lights up and frames the front sight, making it pop against the target and speeding up how fast you find your aim. When the sun goes down, the fully encapsulated tritium takes over on both the front and rear, giving you three-dot low-light aiming with no batteries and nothing to switch on. That day-and-night handoff is the whole point of the H3 platform, and it does it cleanly.
Everything is all-steel, machined to factory sight heights so your zero stays where the pistol expects it. It's a common upgrade for personal defense, law enforcement, and duty setups because it holds up to slide cycling, holster wear, and general knocking around. The sights are sized to clear standard holsters, so you won't have to go hunting for a new rig.
This set is built for the Springfield Armory XD family, covering XD, XD-S, XD-E, and XD-M models. The one exception to keep in mind is the XD 5.25, which uses a different sight cut and won't work with this kit. Installation is a standard sight swap with a punch or pusher, and plenty of folks have their local shop press them on if they'd rather not fuss with it. Hi-Viz backs the tritium with a 12-year warranty against illumination failure, which tells you they expect these to keep glowing for a long haul.
This XDN521 set fits the Springfield Armory XD, XD-S, XD-E, and XD-M models. The one model it does not fit is the XD 5.25, since that pistol uses a different sight cut. If you're unsure which XD you have, check the slide markings or drop by and we can help you confirm.
Regular night sights only use tritium, which shines in the dark but does little in daylight. The LiteWave H3 adds a fiber-optic LitePipe up front that gathers ambient light, so the orange ring glows brightly in the sun and the tritium takes over at night. You get genuine 24-hour visibility instead of just low-light performance.
It's a standard sight swap that most folks handle with a sight pusher or a brass punch and hammer. The sights are cut to factory height, so your point of impact should stay close to stock. If you'd rather not do it yourself, any gunsmith or shop with a sight pusher can press them on quickly.
The tritium is fully encapsulated and Hi-Viz covers it with a 12-year warranty against illumination failure. Tritium naturally dims over time, but you can expect strong nighttime glow well within that window. The fiber-optic front works off available light and doesn't wear out the same way.
| UPC | 613485589894 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | XDN521 |
| Color | Green, Orange |
| Model | |
| Product Type | Sight |
| Style | Fiber Optic |
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