Ameriglo GL331 Optic Compatible Sight Set for Glock XL Tall - Green Tritium Orange Outline Front / Green Tritium White Outline Rear

The Ameriglo GL331 is an optic-compatible XL Tall suppressor-height sight set purpose-built for Glock pistols. The set is built on a rugged steel platform with a low-glare black finish and replaces factory iron sights with taller units designed to co-witness through slide-mounted red dot optics, including Glock MOS slides and a wide range of popular aftermarket reflex footprints.

The front sight carries a self-illuminating green tritium lamp ringed in a bright orange outline for fast, intuitive pickup in low light and daylight alike. The rear uses a matching green tritium insert with a white outline, producing a clear contrast-style aiming picture for rapid target acquisition. Both lamps glow without batteries or ambient light, making the GL331 a dependable night sight pairing for duty, home defense, and everyday carry pistols that already run a red dot.

Designed as an optic-compatible system, the GL331 sits tall enough to clear most slide-mounted reflex sights so the iron sights remain usable as a backup through the optic window. The set fits all Glock Gen 1-5 models except the slim single-stack 42, 43, 43X, and 48 pistols. Front sight height measures 0.315" and the rear sits at 0.392", giving correct sight radius and co-witness geometry for full-size, compact, and MOS slide Glock builds.

Installation is straightforward with basic sight-pushing tools; both the front and rear press into the standard Glock dovetails. When paired with a slide-mounted optic on a MOS or aftermarket-cut Glock, the Ameriglo GL331 delivers a reliable, always-visible backup aiming solution that complements a red dot rather than fighting it.