This item functions perfect as intended I just have a couple of them and don’t need more than 1. The Steiner TOR Fusion Pistol Green Laser and Light Combo features a green laser model 7001, designed for handguns with a rail mounting location. Made of aluminum and powered by CR123A batteries, this laser sight combo is compatible with Weaver and Picatinny mounts. The set includes the original box and is ideal for shooting sports like hunting and target practice. Made in the United States, this Steiner eOptics TOR Fusion product combines precision and reliability for enhancing your shooting experience.