For use on Kahr PM9/PM40/P9/P40/CM9/CM40/CT9/CT40/CW9/CW40 Red laser with constant beam Mounts to the frame without changing out parts or altering your weapon Sits just under the bore for pinpoint accuracy Ambidextrous activation for right and left-handed shooters Compatible firearms: P9, P40, PM9, PM40, CM9, CM40, CW9, CW40, CT9, CT40