The Nightstick LGC-550XL is a Compact Long Gun Weapon Light meticulously engineered for rifles and carbines furnished with Picatinny rails. It boasts a high-powered LED offering an impressive 550 lumens, harmonizing perfectly with a meticulously designed total internal reflection (TIR) lens, which together project a radiant white light beam reaching up to 136 meters. Weighing in at only 2.5 ounces, this lightweight weapon light is equipped with ambidextrous and intuitive toggle switches. This design allows convenient support hand operation with effortless push down for momentary-on and constant-on lighting modes. It can be ideally mounted on the top or side rails ensuring easy reach and activation. The robust housing is crafted from aircraft-degree 6061-T6 Aluminum, complemented by a polymer rear housing for enhanced durability. It operates on a single CR123 Lithium battery, which is included with the product.