I can't recommend one as I don't like lights, lasers, bayonets
or beanie propellers on my carry/defense gun. One downside
to having a light is guaranteeing that the bad guy will have
a good shot at your head or torso, depending on how you're
holding your weapon, just by aiming at the light. Remember
you're not one of the SWAT guys and you don't have 4
other SWAT guys backing you up. Just my $.02.