The AmeriGlo Protector Sight Set for the Glock 42, 43, 43X and 48 (brand part no. GL351) pairs a tritium front sight with a plain black serrated rear. The front has a green tritium lamp with an orange outline, and the rear is a black serrated metal sight with a U-notch. AmeriGlo designed the Protector line to promote fast front sight acquisition, since the only glowing point is the front. The maker lists it for the 42, 43, 43X and 48 and for MOS slides, and it is aimed at concealed carry and personal defense.

Key Specifications

• The set fits the Glock 42, 43, 43X and 48, per the maker’s listing for this part number.
• The front sight is green tritium, giving one glowing aiming point in low light.
• The front outline is orange, a bright ring for daylight visibility.
• The rear sight is black serrated metal with no tritium, so the eye stays on the front sight.
• The rear notch is a U-notch 0.165 inch wide.
• Front blade width is 0.140 inch and front blade height is 0.18 inch.
• Overall rear height is 0.256 inch, with a rear blade height of 0.168 inch.
• Both sights have a case-hardened finish.
• The set also fits MOS slides.

Frequently Asked Questions

Is the rear sight tritium? No. The Protector rear is a black serrated metal sight. Only the front has a green tritium lamp.

Which Glock models fit this set? AmeriGlo lists it for the Glock 42, 43, 43X and 48, and it fits MOS slides.

What is the Protector line designed for? AmeriGlo says it is designed to promote front sight acquisition and is ideal for concealed carry and personal defense.

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