Abstract: A glass bead dispensing apparatus for alternatively being manually held and operated or attached to a walk-behind pavement line striper. A glass bead dispenser is mounted to the horizontal support bar of the line striper so it can be vertically adjusted or quickly demounted for manual use. A bead gate actuation cable extends between the bead dispenser and a forward mounting block for applying glass beads when the paint sprayer of the line striper is actuated. A direction-reversing bell crank is pivotally mounted to the forward mounting block. A sprayer operator connecting link is connected between the direction-reversing bell crank and the paint sprayer operator. For hand held operation, a handle bar is attachable to an upstanding support post of the bead dispenser and has a hand-actuable lever attachable to the gate actuation cable for manually opening and closing the bead gate.