Surefire M640DF Scout Light Pro Dual Fuel 1,200/1,500 Lumens White LED Weapon Light - Black Anodized

The Surefire M640DF Scout Light Pro Dual Fuel is a recoil-proof, ultra-high-output white LED weapon light purpose-built for defensive carbines, duty rifles, and night-hunting setups. Its Dual Fuel power system lets the same light run on widely available CR123A primary batteries or a rechargeable SF18650B lithium-ion cell, giving the shooter a true grab-and-go lighting solution for the field, the range, or the nightstand.

Output is rated at 1,200 lumens when powered by CR123A cells and a maximum of 1,500 lumens when running the SF18650B rechargeable battery, producing tactical-level white light suitable for close- to longer-range target identification. The virtually indestructible LED is paired with a precision reflector that throws well past typical indoor engagement distances while still keeping usable spill for peripheral awareness.

The body is machined from aerospace aluminum with a Mil-Spec hard-anodized finish in matte black, then O-ring sealed against the elements and rated IPX7 waterproof for protection against temporary immersion. At just 5.56 in overall length with a 1.125 in bezel diameter, the Scout Light Pro keeps a low profile forward of the rail while still putting serious weight on the threat end of the rifle.

An integrated adjustable M-LOK mount locks the light directly to M-LOK handguard slots at the 1, 3, 6, 9, or 11 o'clock position without adding a separate clamp or adapter. Activation comes from an integral push-button tail-cap switch that supports both momentary and constant-on operation, letting the shooter keep their support hand in a ready position on the rifle.

Whether you run a defensive carbine, a duty rifle, or a night-hunting rig, the Surefire M640DF Scout Light Pro Dual Fuel delivers the rugged construction, flexible output, and proven mounting system the Scout Light Pro name is built on.