The Viridian Green Laser for All Glocks with Picatinny Rail GLK is a brand new, sealed laser sight designed specifically for Glocks. It features a green laser beam and is powered by a battery, making it ideal for shooting sports and hunting. The laser sight is easy to attach with its Picatinny rail mount and offers precise targeting for improved accuracy. Made in the United States, this high-quality laser sight is a must-have accessory for any Glock owner looking to enhance their shooting experience.