Streamlight 88066 ProTac HL-X Rail Mount Black Anodized Aluminum, 60/1000 Lumens, White LED, 447 Meters Beam, Picatinny Rail MountThe ProTac Rail Mount HL X is a 1,000 lumen weapon mounted light featuring a fixed mount for MIL STD 1913 (Picatinny) rails or with the included M LOK mount allowing for alternative mounting options to M LOK and M LOK compatible rail systems. It uses either a remote pressure switch or a standard push button tail cap switch, and can run on multiple battery types.