I keep buying them… because they work. - SureFire M640DF Scout Light Pro Dual Fuel LED Weapon Light

They are the industry standard for a reason. I have 3 that I’ve had mounted for a few years. Batteries don’t last quite as long as a Streamlight, but the quality is top notch, and the amount of options for modularity and mounting options is amazing. Getting a product with so many supporting products like switches, batteries, and mounts is worth spending the extra money on. But once vet once… for each rifle and flashlight…