One of the brands we trust for quality weapon and tactical lights is Streamlight, and they have the ProTac Rail Mount HL-X now available... "The 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.