SureFire long-gun WeaponLight. Ideal for long-range target identification, the M640DF-PRO projects a blinding, peak beam intensity of 1500 candela when powered by the included SF18650B rechargeable lithium-ion battery, or when powered by two 123 lithium batteries. Its precision reflector creates a tightly focused, concentrated shaft of light with minimal bounce when peering over, under or around barricades. Our Low-Profile Mount (LPM) delivers unprecedented versatility, allowing the user to optimize the light’s position relative to the rail and other attached firearm accessories. Rugged and reliable, the LPM easily and securely attaches to any MIL-STD-1913 or M-LOK rail. Constructed of lightweight aerospace aluminum, Mil-Spec hard anodized, and O-ring sealed to keep out the elements, the M640DF is the best-performing, most durable, and most feature-rich WeaponLight for its size.

• Turbo beam pattern delivers a concentrated, tightly focused beam pattern for PID at extreme distances
• Low-Profile Mount (LPM) allows optimum light positioning; ideal for use with other rail-mounted accessories (MIL-STD-1913 & M-LOK cleats included)
• Dual Fuel—can run on the included SF18650B rechargeable battery or two 123A lithium primary batteries
• The most durable WeaponLight with the most comprehensive remote switching options in the industry