Description
The XS Sights R3D gives your Springfield Hellcat OSP a traditional 3-dot tritium notch-and-post sight picture that works around the clock. The front sight wraps a tritium vial in XS's photoluminescent orange Glow Dot, which soaks up ambient light and keeps glowing when things get dim. The rear sight runs two tritium vials on a blacked-out face, so instead of three competing dots pulling your eye in different directions, your focus stays pinned to that bright orange front post. These are machined from steel bar stock and finished in matte black, and they're made right here in the U.S.A.
Why the Orange Glow Front Sight Works
Color choice matters more than people think. The orange Glow Dot contrasts hard against bright backgrounds and target-rich environments, so it's a great pick for daytime range work and outdoor use while still holding its own once the sun drops. XS tunes the front tritium lamp to burn brighter than the two rear vials, which cuts down the chance of mistaking a rear dot for the front one in low or no light. The front blade measures 0.145 inches wide against a 0.170-inch rear notch, giving you a touch of daylight on each side of the post for faster, cleaner alignment.
Running the R3D With a Red Dot
These are the standard-height R3D set built for the optics-ready Hellcat OSP and XD-S OSP. They'll lower 1/3 co-witness with a Shield RMSc-footprint red dot like the SMSc, so they double as backup irons and help you pick up the dot quicker on the draw. If your battery ever dies mid-string, you've still got dependable tritium sights ready to go.
Getting Them Installed
The R3D can be installed with a sight pusher tool or a hammer and punch if you're comfortable working on your slide. Tritium is a long-lasting light source with a usable glow life measured in years, so once these are on, they're good to go for the long haul without batteries or charging. It's a straightforward upgrade that makes a real difference the first time you draw in fading light.
Key Specifications
- Manufacturer: XS Sights
- Model: R3D
- Manufacturer Part Number: SP-R013P-6N
- UPC: 647533024969
- Fits: Springfield Hellcat OSP and XD-S OSP
- Sight Type: 3-Dot Tritium Night Sight, Notch and Post
- Front Dot Color: Orange Glow Dot with Tritium
- Rear Sight: Two-Dot Tritium, Blacked-Out Face
- Front Blade Width: 0.145 in (3.68 mm)
- Rear Notch Width: 0.170 in (4.32 mm)
- Sight Height: Standard Height, 1/3 Co-Witness with Shield RMSc
- Material: Steel Bar Stock
- Finish: Matte Black
- Country of Origin: Made in the U.S.A.
What’s Included
- XS R3D front night sight (orange Glow Dot)
- XS R3D rear night sight (two-dot tritium, blacked-out)
Frequently Asked Questions
Will the R3D fit my Springfield Hellcat OSP?
Yes, this set is cut specifically for the Springfield Hellcat OSP, and it also fits the XD-S OSP. It uses the factory dovetails, so no slide milling is needed. Just match your model before ordering and you're set.
Do these R3D sights co-witness with a red dot on the Hellcat OSP?
They do. This is the standard-height R3D set that gives you a lower 1/3 co-witness with a Shield RMSc-footprint optic like the SMSc. That makes them a solid set of backup irons and helps you find the dot faster on the draw if your optic battery dies.
Why choose the orange Glow Dot over green?
The orange front dot contrasts best in bright daylight and busier backgrounds while still staying visible in low light. Green tends to glow a bit brighter in full darkness, so orange is the pick if daytime speed and contrast are your priority. Both use the same tritium for true night visibility.
Can I install the R3D sights myself?
You can if you have the right tools. The R3D can be pressed in with a sight pusher or tapped in with a hammer and brass punch. If you're not comfortable working on your slide, any gunsmith can knock this out in a few minutes.






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