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The R3D from XS Sights is one of the cleaner night sight setups you can bolt onto a Glock, and it comes down to a simple idea: your eye should always land on the front sight first. The front blade carries a green tritium lamp wrapped in the company's Ember Glow Dot, a photoluminescent ring that soaks up ambient light and keeps glowing when the lights go out. That tritium lamp actually charges the Ember dot, so the front sight burns a little brighter than the rear two dots at all times. In bright daylight or a dark hallway, your focus stays where it belongs.
The rear sight is blacked out to boost contrast, and it runs a wider 0.170-inch notch around a 0.145-inch front post. That extra breathing room on either side of the front blade makes indexing quick without giving up alignment when you need a precise shot. It's a classic notch-and-post picture done right, and it works just as well on a range day as it does for a home-defense pistol tucked in the nightstand.
Every R3D is CNC machined from solid steel bar stock at the XS shop in Fort Worth, then blued to fight off rust with regular cleaning and oil. Steel construction means these can shrug off drops and get racked off a belt or barricade without folding up on you. The tritium is warranted to glow for twelve years, which is right in line with what you'd expect from a quality night sight.
This set drops in as a direct replacement for the factory sights on Glock 20, 21, 29, 30, 30S, 37, and 41 across Gen 1 through Gen 5. They seat in the standard dovetails and fit standard holsters. You can press them in with a sight pusher or run a hammer and punch if that's what you've got on the bench. If you'd rather not track down separate tools, XS bundles the R3D with model-specific pusher kits that take the guesswork out of centering the rear.
This set is cut for the Glock 20, 21, 29, 30, 30S, 37, and 41 and works across Gen 1 through Gen 5 of those models. It seats in the standard factory dovetails and swaps in as a direct replacement for your stock sights. Double-check your exact model against the fitment list before ordering.
The R3D still uses tritium up front and two lamps in the rear, but the rear is blacked out during the day to boost contrast, and the front carries the Ember Glow Dot that charges off the front tritium lamp. That keeps the front sight glowing brighter than the rear at all times. The whole design is built to hold your focus on the front sight and the target downrange.
Yes. The sights press into the dovetails with a sight pusher tool, or you can use a hammer and brass punch if that's what you've got. XS also offers model-specific pusher kits bundled with the sights if you want everything in one shot, and they publish written and video install guides.
XS warranties the tritium illumination to glow for twelve years, which is standard for quality night sights. Tritium naturally dims over its life as the gas decays, so figure on strong low-light performance for years before it gradually fades. The steel bodies themselves will last far longer with basic cleaning and oil.
| UPC | 647533046473 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | GL-R013P-6G |
| Color | Green Tritium Front Black Rear |
| Model | |
| Shipping Weight | 0.13 |
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