Surefire M640DF Scout Pro
Surefire M640DF Scout Pro

Surefire M640DF Scout Pro




Surefire M640DF Scout Pro

The new SureFire M640DF Scout Pro duel fuel is the ultimate single output WeaponLight. The M640DF takes SureFire’s combat proven tactical white light weapon light to an entirely new level of versatility while retaining all the combat-proven features of the M600DF. Featuring SureFire’s new rotational low-profile mount, the M640DF Scout Pro provides superior adjustability with no need to purchase aftermarket mounts.  The low pro mount comes standard with both a Picatinny and M-LOK attachment.  The mount has an adjustable rotational feature that can be locked down.  This lets the user to optimize the lights position in relation to the rail.

The Scout Light Pro Dual Fuel features a recoil-proof, ultra-high-output LED that delivers 1,200 lumens of blinding white light with 123A batteries or 1,500 lumens of light with the Surefire 18650B rechargeable lithium-ion battery. A proprietary Total Internal Reflection (TIR) lens shapes the recoil-proof LED’s light into a beam with plenty of reach but enough surround light to accommodate peripheral vision, making the Scout Light Pro Dual Fuel ideal for close to longer-range applications.

The M640DF comes standard with Surefire’s Z68 push-button tailcap switch. However, any surefire tailcap can be used for use with dual switches and pressure pads. Constructed of lightweight aerospace aluminum with a Mil-Spec Hard Anodized finish the M640DF is an industry leading weapon light.

Recommended Uses

We recommend the Surefire M640DF Scout Pro for any combat or duty weapon host.  It is important to understand that lumens cancel our lumens and if you are using your rifle in a duty or even self defense capacity high output lights give you a better probability for success.


Additional Resources

Additional information

Weight 20 oz
Dimensions 9 × 9 × 9 in

Tan, Black


5.56 Inches


(2) CR123 or (1) 18650

18650 Output

1500 Lumens

18650 Runtime

1.5 Hours

CR123 Output

1200 Lumens

CR123 Runtime

1.25 Hours


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