Abstract: An anti-personnel canister includes a generally cylindrical container having side walls, the side walls defining an enclosure with a generally concave surface at one end and an opening at another end; the side walls having an outer surface, the outer surface including a plurality of longitudinal grooves formed therein and, below the plurality of longitudinal grooves, a circumferential obturator groove; a plurality of submunitions disposed in the enclosure; a spacer disposed in the enclosure between the plurality of submunitions and the opening; and a cap disposed on the opening of the container, the cap having a top surface and including a pair of orthogonal grooves formed on the top surface.