An apparatus for adjusting a reticle, comprising: an adjustable reticle, a reticle adjustment device comprising an adjustment actuation element movably mounted, a combined click and lock device which comprises a first click device element equipped at least in sections with a click surface formed by a three-dimensional surface or surface structuring, and a second click device element mounted to be movable relative to said first click device element and engages with the click surface of the first click device element, wherein the combined click and lock device is designed to, in a first operating mode, generate acoustic and/or haptic feedback perceptible to an operator, in the case of movement of the adjustment actuation element in at least one adjustment-movement degree of freedom, and is designed to, in a second operating mode, lock movements of the adjustment actuation element in the at least one adjustment-movement degree of freedom.