The invention concerns a rifle scope (1) with a housing (10), in which optical lenses (20, 21, 22, 23) are arranged along an optical path (OP), and with an adjusting wheel (11) for adjusting a function, wherein the adjusting wheel (11) is mounted so as to turn relative to the housing (10) about an axis of rotation (A), and wherein the adjusting wheel (11) has a first coupling means (13), on which an adjusting aid (30) which projects relative to the axis of rotation (A) radially about the outer circumference (12) of the adjusting wheel (11) is releasably secured to a second coupling means (31).