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Swivel does not lock - SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light

by Old Guy, Verified Owner from ID, United States Written on July 6, 2025
Review for SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light
SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light
SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light
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Old Guy's Review of SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light

It is a good light, and I have no complaints about it. The MLOK mount on the other hand is horrible. The swivel on the mount is supposed to be adjustable up or down and can be locked in place by turning the screw. On mine no matter how much I tighten the screw it drops down to the lowest point.
Pros:
  • Reliable light, great illumination
Cons:
  • Mount swivel won't lock
Would Recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.