A sight device for an archery bow comprises a sight arm (5) adjustably attached to an attachment plate (4) which is mounted to the bow handle. The attachment plate includes a plurality of vertically arranged grooves (14) along its length, and the sight arm includes ridges (15) along its length to mate with the grooves. The forward end of the sight arm includes an articulated cylindrical shaft (17). A holder (18) is secured to the cylindrical shaft for lateral adjustment. A C-shaped lateral adjustment unit (9) is screwed to the holder for vertical adjustment. A support (10) for a scope lens (11) is secured to the lateral adjustment unit.