CISNO Green/RED LED Tactical Laser Scope Sight W/Remote Switch Quick Release QR Offset Picatinny Rail Mount for Rifle AR Tactical laser sight scope, durable all metal construction Windage and elevation adjustable (tool included) Interchangeable cap switch which keeps the scope on when fully tightened and remote pressure switch which turns on the scope only when pressed Batteries: 1 x LC 16340 or CR 123A battery (no battery included) 1 Quick release QR mount: for 20mm picatinny rail