Viridian's Reactor R5 laser sight features a 5mW laser set inside a high-strength thermomolded polymer housing. The laser, including batteries, weighs only .78 ounces. Green lasers have an effective targeting distance of 100 yards in daylight and up to two miles at night. Battery life in constant-on mode is one hour for the green laser.
Feature windage and elevation adjustments and come with built-in ECR Instant-On technology that is activated by the free holster that is included included.