The Uni-Green from Lasermax offers high visibility in ALL lighting conditions. It is a lightweight 1 ounce, with batteries, and features an integral Picatinny rail system to allow a variety of accessories to be stacked right onto the green laser system. The Uni-Green features ambidextrous activation to accomodate the left- or right-handed shooters. The device, constructed from FRN (Fiber Reinforced Nylon) for lasting durability, maintains alignment after every battery change.