The AmeriGlo Protector Sight Set for Glock (Model 21) (brand part number GL434) pairs a green tritium front sight with a orange outline against a black, serrated rear sight, giving you a fast, high-contrast sight picture for concealed carry and personal defense. AmeriGlo designed the Protector line, also known as Hackathorn Sights, around quicker front sight acquisition, drawing your eye straight to the tritium front dot instead of hunting across a cluttered notch. The serrated rear face cuts glare and helps with one-hand slide manipulation off a belt or holster edge. This Model 21-pattern set is not compatible with Gen5 pistols or the Glock MOS slide.

Key Specifications

• Fits Glock (Model 21) pistols.
• Green Tritium Front Sight glows for low-light target acquisition.
• Orange Outline around the front dot speeds up sight acquisition.
• Black Serrated Rear Sight cuts glare and aids one-hand slide manipulation.
• Front/Rear Set installs as a complete matched pair.
• Built for concealed carry and personal defense use.

Frequently Asked Questions

What pistols does this fit? Glock (Model 21) pistols This Model 21-pattern set is not compatible with Gen5 pistols or the Glock MOS slide.

Does the front sight glow in the dark? Yes, the front sight uses a green tritium insert for low-light aiming.

Why is the rear sight serrated? The serrated face cuts glare and helps rack the slide one-handed against a belt or holster.

Buy the AmeriGlo Protector Sight Set for Glock (Model 21), Orange Outline

Upgrade your carry pistol’s sight picture with AmeriGlo sights from our gun sights selection. Order online and we’ll ship it straight to your door from our Lubbock, Texas gun shop.