Description
Running a red dot on your Glock is great until the battery dies or the glass fogs up at the worst possible moment. The AmeriGlo GL330 gives you that safety net. This 2XL tall set is built to project up through your optic window so your irons are right there when you present the pistol, and it drops into all Glock Gen 1-5 models along with MOS-cut slides, minus the small-frame 42, 43, 43X and 48.
What the GL330 Height Actually Buys You
Factory Glock sights sit too low to show through a mounted optic, which leaves you with no backup if the dot fails. At 0.350 inches up front and 0.429 inches out back, this 2XL set clears most footprints and gives you a usable sight picture through the glass, typically landing in the lower third of the window. That keeps the top of your optic clear for the dot while the irons wait quietly at the bottom. The 0.125 inch front blade with a square rear notch is a clean, fast combo for lining up under pressure.
Tritium That Earns Its Keep in the GL330 Set
Both the front and rear inserts run green tritium ringed with white outlines, so you get glowing dots after dark and crisp reference points in daylight. The white rings make the sights easy to pick up fast without a light source, and the tritium keeps working through the night with no batteries to babysit. It's a genuine three-dot night sight setup that happens to be tall enough to double as your optic backup.
Built to Take a Beating
AmeriGlo machines these from steel and finishes them in a low-glare black that won't wash out your sight picture in bright sun. This is hardware trusted by law enforcement, military, and everyday carriers, and it's made in the USA. Pairs nicely with a Vortex Viper footprint and plays well with suppressor setups where you need the irons to clear the can.
Key Specifications
- Manufacturer: AmeriGlo
- Manufacturer Part Number: GL330
- UPC: 644406908241
- Style: Optic-Compatible / Suppressor Height
- Size: 2XL Tall
- Front Sight: Green Tritium, White Outline
- Rear Sight: Green Tritium, White Outline (2-Dot)
- Front Blade Height: 0.350 in
- Front Blade Width: 0.125 in
- Rear Sight Height: 0.429 in
- Rear Notch Shape: Square
- Material: Machined Steel
- Finish: Black
- Fitment: Glock Gen 1-5 and MOS (excludes 42, 43, 43X, 48)
- Optic Compatibility: Vortex Viper footprint
- Country of Origin: USA
What’s Included
- Front sight (green tritium, white outline)
- Rear sight (green tritium, white outline)
Frequently Asked Questions
Will the AmeriGlo GL330 co-witness with my red dot?
Yes, that's exactly what this 2XL set is built for. The tall front and rear blades project up through most optic windows so the irons are visible when you present the pistol, usually sitting in the lower third of the glass. Keep in mind that where they land depends on your specific optic and how it mounts, so it's worth confirming with your dot.
Which Glocks does the GL330 fit?
It fits all Glock Gen 1 through Gen 5 models, including MOS-cut slides. The exceptions are the small-frame guns: the 42, 43, 43X, and 48. If you've got a standard-frame Glock like a 17, 19, 34, or similar, you're good to go.
Do these sights need batteries to glow in the dark?
No batteries here. The green tritium inserts glow on their own through the night for years, and the white outlines give you fast daytime reference. That's the beauty of a true night sight over anything battery-powered.
Can I use the GL330 with a suppressor?
You can. Suppressor-height sights like these were originally designed to clear a can mounted at the muzzle, so the extra height keeps your irons visible over the top of a suppressor. Just double-check that the can doesn't clip your sight picture and re-confirm your zero after mounting.





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