hi lee,
the only lasers that are any good are laser max and crimson trace. i use the crimson trace on my pocket pistol, s&w model 37. since there are no sights at all on this pistol and if there were they would be useless on a 1.5 inch barrel. the laser is really no good during the day, but at knight the laser is helpful. other than this type application lasers are not very effective.
lynn