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The XS Sights R3D 2.0 takes the classic three-dot notch-and-post layout and sharpens every part of it. Up front you get a tritium vial wrapped in a high-contrast orange Glow Dot that soaks up ambient light and keeps glowing when the sun goes down. Pair that with green tritium lamps front and rear and you've got a sight picture that stays easy to read at high noon, at dusk, and in total darkness. It's a real upgrade over the plastic sights Glock ships from the factory, which tend to break or shift under hard use.
XS built the 2.0 around feedback from folks running the first-gen R3D. The rear tritium vials are larger and brighter than the originals, and the rear face is serrated with an anti-reflective lens to cut glare in bright sun. The 0.170-inch wide rear notch gives you plenty of daylight on either side of the 0.145-inch front post, which makes lining things up quicker when the light gets ugly. There's also a ledge machined into the rear sight so you can rack the slide one-handed off a belt or boot heel if you ever need to.
This set is cut to suppressor/optic height for the slimline Glocks, meaning it sits tall enough to co-witness with micro red dots like the Holosun 507K that drop down into the slide cut on subcompact pistols. It fits the Glock 42, 43, 43X, and 48. If you're running a taller optic setup, double-check your specific plate and dot height before ordering, since suppressor-height irons and full-size RMR plates don't always play together.
Everything is CNC-machined from solid steel and finished in BlackNitride, which shrugs off sweat, rust, and holster wear a lot better than black oxide. That matters when a slimline Glock lives in your waistband all summer. XS designed these to be installable at home with a sight pusher, and plenty of owners knock them out with a punch and a little patience, though a gunsmith can set them for you if you'd rather not risk scratching your slide.
Yes, this is the suppressor/optic-height version, so it sits tall enough to co-witness with micro red dots that drop down into the slide cut on slimline Glocks, like the Holosun 507K. It's designed for subcompact optic setups rather than full-size RMR plates. If you're running a taller plate or dot, confirm your specific optic height before ordering.
XS designed the 2.0 to be user-installable, and many owners get them done at home with a sight pusher tool. A punch and a bit of patience also works if you're careful not to mar the slide. If you'd rather not risk it, any gunsmith or full-service shop can set them for you quickly.
The 2.0 uses larger, brighter rear tritium vials than the original R3D, so both rear dots are now the same size as the front. XS also added serrations and an anti-reflective lens to the rear face to knock down glare, and revised the finish to BlackNitride for better corrosion resistance. The dovetail dimensions were tweaked to make installation easier too.
The orange Glow Dot gives you the best contrast in bright daylight while still glowing in low light thanks to the photoluminescent ring and tritium vial. Green tends to have the brightest overall glow in the dark. Both work day and night, so it comes down to whether you prioritize daytime pop or maximum low-light intensity.
| UPC | 647533003841 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | GL-R206P-6N |
| Color | ORANGE |
| Length | 8.1500 |
| Model | |
| Product Type | Night Sight |
| Shipping Weight | 0.125 |
| Style | Suppressor Height |
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