AmeriGlo Tritium Rear Sight — Springfield® XD & Hellcat™ | Green Tritium with White Outline (Rear Only) | XD191R | UPC: 644406901525
Upgrade your sight picture day and night with the AmeriGlo Tritium Rear Sight for Springfield XD/Hellcat (XD191R). Featuring dual green tritium lamps set in a high-contrast white outline rear, this rear-only unit gives you fast, intuitive alignment in bright sunlight and automatic glow in low light—no batteries, no switches, just dependable visibility when you need it most. Whether you’re building a defensive pistol, refining your carry setup, or outfitting a duty gun, AmeriGlo’s professional-grade tritium sights offer rugged reliability and clearer, quicker sight acquisition.
Why Choose AmeriGlo Tritium for Your XD or Hellcat?
Always-on illumination: Green tritium lamps glow continuously for years—perfect for dusk, dark interiors, and low-light emergencies.
Day/Night contrast: White outlines pop in daylight; at night, the tritium centers take over so you can track the rear window and find your front sight fast.
Duty-proven quality: AmeriGlo sights are trusted by concealed carriers, law enforcement, and professional trainers for durability and consistency.
Smart upgrade path: Rear-only configuration pairs perfectly with your preferred front sight (stock, fiber-optic, tritium, or high-vis) so you can tailor the sight picture to your eyes.
Key Features & Advantages
Rear Sight Configuration: Dual green tritium vials with white rings provide unmistakable reference points under stress.
Enhanced Sight Picture: Crisp rear references promote faster alignment, cleaner presses, and fewer sight-searching delays.
Rugged Steel Construction: Precision-machined sight body designed to handle daily carry, training rounds, and hard use.
Anti-Glare Geometry: Face geometry and matte finish help reduce glare in bright conditions.
Battery-Free Lighting: Tritium self-illuminates—no charging, no maintenance beyond routine cleaning.
Serviceable Longevity: Typical tritium half-life ~12 years; lamps gradually dim over time (replace when your eyes want a refresh).
Rear-Only Versatility: Keep your existing front or add an AmeriGlo front (plain, orange/green outline, or tritium) to build your ideal day/night set.
Note: This listing is rear sight only. Front sight sold separately unless otherwise stated by your retailer.
Compatibility
Fits: Springfield® XD series and Springfield® Hellcat™ models (rear dovetail).
Model/SKU: XD191R
UPC: 644406901525
Color/Illumination: Green tritium (rear) with white outline rings
Material: Steel (sight body)
Always verify sight height and dovetail compatibility for your specific XD/Hellcat variant before purchase or installation.
Installation Tips
Unload & Clear: Verify the chamber and magazine well are empty; follow all safety procedures.
Use a Sight Pusher: A quality rear sight pusher minimizes marring and ensures straight travel in the dovetail.
Fit & Center: Some slides may require light degreasing and a hint of non-permanent thread locker; center precisely, then confirm at the range.
Confirm Zero: Shoot at 10–15 yards to verify POA/POI with your chosen front sight and ammo, then fine-tune as needed.
If you’re unsure about tools or technique, a competent gunsmith can install and center the sight quickly.
Performance You’ll Notice
Faster alignment, less hunting: The outlined tritium lamps create a repeatable rear window so your eye naturally finds the front.
Confidence in low light: From parking garages to home night shifts, the rear dots glow without fumbling for buttons.
Cleaner daylight view: White rings provide a sharp, high-contrast frame that complements fiber, plain black, or tritium fronts.
Ideal Use Cases
Concealed Carry & EDC: Reliable, always-on aiming reference with minimal bulk.
Home Defense: Immediate low-light visibility when seconds count.
Range & Training: Consistent references speed up draw-to-first-shot and press-out drills.
Duty / Off-Duty: Rugged steel construction and proven tritium technology for everyday professionals.
Care & Maintenance
Routine Cleaning: Wipe with a soft cloth; avoid abrasive media on the tritium windows.
Check Retention: Periodically verify the rear sight is centered and secure, especially after high round counts.
Front Pairing: For the brightest low-light picture, pair with an AmeriGlo tritium front (orange/green outline options available).
Specifications (Quick View)
Brand: AmeriGlo
Product: Tritium Rear Sight (Rear Only)
Platform: Springfield XD / Hellcat
Illumination: Green tritium with white outline (rear)
Construction: Steel
Model/SKU: XD191R
UPC: 644406901525
SEO-Friendly Highlights (What Shoppers Search)
AmeriGlo XD191R tritium rear sight Hellcat
Springfield XD tritium rear sight green white outline
Tritium night sight rear only for Springfield Hellcat
AmeriGlo rear night sight steel 644406901525
Best night sights for Springfield XD and Hellcat
The Bottom Line
The AmeriGlo Tritium Rear Sight (XD191R) is an easy, high-impact upgrade for Springfield XD and Hellcat pistols. With green tritium and white outlines in a tough steel body, it delivers faster alignment and true low-light capability—so your sight picture is ready whenever you are.
The End
