The tube on the right side houses the laser. In order to make it fit in so small an area and still be adjustable, the laser is held in a polymer case by what LaserLyte describes as its patent-pending “biasing cone technology.” The sight comes unadjusted with the screws backed out, which allows it to be zeroed. Once the adjustments have been set, readjustment requires the screws be backed out, the unit to sit for 30 minutes to allow the polymer to reset, allowing the shooter to adjust the zero again. LaserLyte specifications call for a 10-foot range of adjustment at 100 yards. The center section of the sight is a conventional, non-adjusting rear sight with a bold white outline.
LaserLyte is shipping rear sights for Glock, Ruger SR-9, S&W M&P, Springfield XD/XDM, and various M1911-style pistols with more models planned in the near future. The sight is easy to install once the old sight is removed: Once pushed left-to-right into the dovetail with the supplied brass punch, a set screw in the center locks it in place.