This collection contains iron sights for the Canik METE, including co-witness sights and low sights. Sight pictures: fiber optic, tritium and blank. They are made by Angry Bear and Night Fision.
Check that your model and variant are named in the title of the sight. You find a full guide to these sights, how to choose them and how to fit them in Sights for Canik TP9.
Yes, with a sight pusher or a punch. Drift the old sight out of the dovetail and push the new one in. If you do not have the tool, a gunsmith can do it for you.