The Fenix ALG-18 is a high-performance, tool-free barrel mount designed for tactical and hunting applications. Crafted from durable A6061-T6 aluminum with a Type HAIII hard-anodized finish, this mount provides exceptional reliability and scratch resistance. It is engineered to securely attach flashlights to gun barrels ranging from 18mm to 23mm in diameter without requiring any tools. The mount is compatible with most flashlights featuring a body diameter between 23.5mm and 28mm and a head diameter of less than 70mm. Featuring integrated rubber inserts, it ensures a firm grip, protects your equipment from scratches, and prevents movement during use.