US Patent 11243049 Tool-less re-zero optical scope knob adjustment systems and methods

Embodiments of the present disclosure relate to a user-zeroable adjustment knob for an optical aiming device. The adjustment knob includes a rotating member rotatable about an axis of rotation to change a setting of the optical aiming device, the rotating member including a rotating member clutch surface centered on the axis of rotation and a dial comprising a dial clutch surface, and wherein the dial is movable between an engaged position where the dial clutch surface is engaged with the rotating member clutch surface, and a disengaged position in which the dial clutch surface is disengaged from the rotating member clutch surface, allowing the dial to be rotated relative to the rotating member to set a zero position.