Lasers that mount to a pistol's accessory rail are nothing new. A laser this small, however, means that even the smallest handgun with the tiniest stub of an accessory rail now has a laser option.
LaserMax's Micro red rail-mounted laser claims to be the smallest and most lightweight rail-mount laser on the market, which is difficult to dispute. Weighing less than half an ounce and barely larger than a quarter, the Micro certainly lives up to its designation.
Powered by a 1/3N Lithium battery with a run time of more than 5 hours, it will fit on any accessory rail with one inch of rail space and only a single slot. It is adjustable for windage and elevation, has simple paddle-type switches, and even sports a quick-detach battery cover for rapid recharging of the power source.
For anyone looking for a small, light laser for a compact handgun, the Micro is definitely worth a look.