Not only are these units convenient, but they are reliable and built with high quality material and Wolff Gunsprings, so you know your getting the best there is. LaserMax guide rod laser have been torture tested to Military and Homeland Security Specs including:
When you want the added confidence of a pulsating red laser sight, the LaserMax guide rod lasers will provide exactly that. On the flipside, when you don't want to give away your position or just don't want the laser at the time, the guide rod lasers are not in the way and are easily deactivated for both right and left handed shooters.
Battery Type: Energizer 393 S.O. (3)
Battery Life: 1-year under average use
Wavelength: 635nm red laser
Output: 5mW (pulsating)
Laser Range: Not listed
Warranty: Limited Lifetime