Sights for Glock 21

This collection contains iron sights for the Glock 21, including co-witness sights for a red dot. Sight pictures: blank, fiber optic, luminescent dots, tritium, white dots and white lines. They are made by Angry Bear, Eemann Tech, LPA, Night Fision and Zendl. All of them fit the classic, MOS and ORS (gen 6) slide.

You find a full guide to these sights, how to choose them and how to fit them in Sights for Glock 17.

Sights at a glance

Frequently asked questions

Can I change the sights on my Glock 21 at home?

Yes, with a sight pusher or a punch. Drift the old sight out of the dovetail and push the new one in. For the front sight you need a Glock front sight screwdriver. If you do not have the tool, a gunsmith can do it for you.

I use a red dot on my Glock 21. Which sights should I take?

The tall co-witness sights. You see them through the window of the optic, so you have a backup if the red dot fails.