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When you mount a red dot on a Glock, your factory irons disappear under the optic. The AmeriGlo GL452 fixes that with an XL tall set built to sit high enough for a co-witness sight picture, so your dot and your irons line up in the same window. If the red dot battery dies or the glass fogs, these are the sights that get you back in the fight.
The front sight runs a green tritium lamp wrapped in a glare-resistant orange ProGlo outline, which is easy to pick up in bright sun and glowing on its own once the lights go out. The rear pairs two green tritium dots with a blacked-out outline and a black finish, which keeps your focus pulled forward onto that front dot instead of scattering it across three bright points. That front-focus setup is one of the reasons this configuration is popular with folks running an optic, since the clean rear cuts down on sight-picture clutter.
This is an XL height set. The front measures 0.315 inches and the rear comes in at 0.394 inches, giving you the deck height needed to peek over most miniature red dots and clear many suppressor setups. It's a good match for popular optics using the Aimpoint Acro, Holosun 509T, and Steiner MPS footprints. Height matters a lot with co-witness sights, so if you're chasing a specific lower-third view, it's worth confirming your exact optic and mounting plate before you order.
AmeriGlo machines the GL452 from steel and assembles it with Swiss-made tritium, the same recipe that's made the brand a go-to for law enforcement, military, and everyday carry folks. The tritium doesn't need charging or batteries, it just glows, and it stays visible around the clock.
These fit nearly every Glock in the Gen 1 through Gen 5 lineup, including MOS slides, with the 42, 43, and 48 being the exceptions. A sight pusher makes the rear install straightforward, and many owners run a paint pen or minor fitting to dial things in. If you carry, plan for a holster that clears the taller profile.
That's exactly what this XL tall set is built for. The 0.315-inch front and 0.394-inch rear give you the elevated deck height to co-witness with slide-mounted miniature red dots on a Glock. Co-witness height varies by optic and mounting plate, so it's smart to confirm your specific red dot and plate combo to get the sight picture you want.
It fits nearly the entire Gen 1 through Gen 5 Glock lineup, including MOS slides, with the 42, 43, and 48 being the exceptions. Because it's an optic-compatible height, it's a natural fit for MOS pistols running a red dot or a suppressor setup that needs taller sights.
The blacked-out rear is intentional. Keeping the rear plain pulls your focus forward onto the bright orange-ringed front dot, which speeds up target acquisition and reduces clutter when you're picking up your red dot. Many optic users prefer this front-focus setup for exactly that reason.
No batteries here. The GL452 uses Swiss-made tritium that glows on its own around the clock and never needs charging. Installation is straightforward with a sight pusher for the rear, though some owners do minor fitting to dovetail them in perfectly, so a professional install is a solid option if you don't have the tools.
| UPC | 644406904571 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | GL-452 |
| Shipping Weight | 0.065 |
| Style | Optic-Compatible |
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