Specifications: LASERLRed, adjustable (<5mW / 650nm) 4 Hours / 412 Meters. MOUNT STYLE, Adjustable hinge mount design; no tools required. For rail-equipped subcompacts, pistols and long guns. DESIGN:Anodized aircraft-grade aluminum; water and impact-resistant, Accessory rail system for mounting, additional accessories (18mm x 24mm). OPERATION: Side-positioned ON/OFF switch; pressure switch. ACCESSORIES: Pressure switch included, Laser adjustment screwdriver included. BATTERIES: CR1/3N battery included. SPECS: Size ?�� (L) 1.875?�� x (W) 1.5?�� x (H) 1.25?��, Weight ?�� 0.15 lbs.Description: The RMLSR uses a 5-milliwatt, 650 nanometer laser to sight up to 412 meters away. The laser is controlled by the standard cap for use with a hang gun, or by the pressure switch for use with a long gun.