AmeriGlo 3XL Tritium Green/Black OL For Glock

AmeriGlo 3XL Tall Tritium Night Sights for Glock MOS

Enhance your Glock MOS platform with the AmeriGlo 3XL Tall Sight Set, specifically engineered for shooters who utilize red dot optics. These sights are crafted from high grade steel to ensure they withstand the rigors of daily carry and intensive range sessions. The 3XL height is a critical addition for any Glock owner who has upgraded to a Trijicon RMR, SRO, or Holosun series optic. By providing a taller profile, these sights allow for a proper lower one third co witness through the optic window, ensuring you have a reliable aiming point if your electronics fail.

The design features a bright tritium front sight with a subtle black outline, paired with a flat black serrated rear sight. This configuration is intentional because it draws the eye immediately to the front post during high stress situations without the distraction of busy rear markings. For those who carry for personal protection, the tritium insert provides a glowing reference point in low light or total darkness. Whether you are navigating a dark hallway during a home defense scenario or practicing transitions at a local tactical match, these sights provide the professional edge needed for precision shooting.

The AmeriGlo 3XL set is optimized for all Glock MOS models, including popular frames like the Glock 19 MOS and Glock 17 MOS. Because these sights are designed to clear the base of taller optics like the Holosun 508T or the Trijicon SRO, they eliminate the guesswork of finding the right height. Terran Gear USA provides these components to help you build a more resilient and capable firearm system that performs regardless of lighting conditions or battery life.

Product Specifications

• Sight Height: 3XL Tall Profile for optic clearance
• Front Sight: Tritium green lamp with a black outline for high contrast
• Rear Sight: Flat black finish to reduce glare and focus the eye forward
• Compatibility: Fits all Glock MOS models (17, 19, 34, 45, etc.)
• Optic Compatibility: Optimized for Trijicon RMR/SRO and Holosun 407/507/508T series

Frequently Asked Questions

Why do I need 3XL height sights for my Glock MOS?
Standard factory sights are too short to be seen over the base of a red dot optic. The 3XL height is tall enough to appear in the bottom portion of your optic window, which is known as a co witness. This ensures that if your red dot battery dies or the electronics malfunction, you still have functional iron sights to aim with.

Will these sights work with a non MOS Glock?
While these sights will physically fit the dovetails of a standard Glock slide, they are specifically designed for the MOS (Modular Optic System) height requirements. On a standard slide without an optic, these will sit very high and may change your point of impact significantly. They are best used on slides equipped with reflex sights.

Is the tritium always glowing?
Yes, the tritium front sight contains a small amount of gaseous isotope that glows naturally without needing to be charged by a light source. This makes it an ideal choice for concealed carry or home defense where you might encounter sudden low light environments.

What is the benefit of a blacked out rear sight?
A blacked out rear sight reduces visual clutter. When you are aiming, your brain should focus on the front sight post. By removing white dots or outlines from the rear, AmeriGlo helps you achieve a faster and more accurate sight picture during rapid fire or tactical training.