This is my first design for a pair of chair mounts for my joystick & throttle for flight sims (vr) that are easy and quick to fit & remove.

The chair mount is fixed to the front part of the arm with 2, 6mm counter sunk bolts (3 holes for different chairs arms) the joystick base is a push fit into the chair arm, the chair arm has a dove tail joint that slides downwards into the chair mount.