Here is the new Rail Mounted Light from Streamlight, a company we prefer for mounted lighting solutions on our airsoft gear... "The TLR-3®X delivers powerful performance with multi-fuel battery capability, operating on either one (1) CR123A battery or one (1) Streamlight SL-B9® rechargeable lithium-ion battery pack. This compact weapon light delivers 500 lumens and 6,500 candela, providing exceptional brightness and beam distance for tactical applications. Featuring a narrow profile, reversible rail clamps, and multiple paddle switches, the TLR-3®X is designed for customizable fitment on a broad range of firearms. Its innovative design ensures quick and safe installation and removal without placing hands in front of the muzzle, enhancing user safety and convenience."