A receptor buck and receptor system for securing a window or door frame. The receptor buck includes a longitudinal rack, a surface of the rack that includes an aperture for accepting a first fastener to fasten the rack to a wall opening surface, and another surface that includes another aperture for accepting a second fastener to fasten the window or door frame to the rack. The receptor system includes the rack, the first and second fasteners, and the fasteners extend in generally the same direction.