The present disclosure provides a rail mount for mounting a device on a rail. According to an embodiment, the mount comprises a frame having a length along a first direction, a width along a second direction, and a height along a third direction; a clamp operatively connected to the frame to be slidable along the second direction; an adjustment cam operatively connected to the frame to be rotatable around a first axis extending along the third direction; and a lever cam operatively connected to the adjustment cam to be rotatable around a second axis extending along the third direction. The lever cam is configured to translate a rotary force applied thereto into a linear force applied to the clamp along the second direction. The adjustment cam is configured to shift the second axis closer to or further from the frame along the second direction when the adjustment cam is rotated.