- Filter Review
This product works well as a blue filter.
I frustratingly discovered its fragility after a drop from approximately 4' cracked the glass and broke one of the two hinges. This was surprising to me based on the build quality of my other surefire products.
Reviewed by JK (Posted on 11/14/13)
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The FM46 is a blue filter for Flashlights and WeaponLights with a 1.37" bezel diameter. Produces a smooth beam of blue light. Hunters use the blue filter to track wounded game at night because blood stands out more distinctly against foliage when viewed under blue light. The filter is also useful for close range, non-tactical applications - such as map reading -- as it reduces the intensity of light output. Applying thumb pressure to the locking tab releases the cover; a spring mechanism keeps the open cover out of the way by holding it flat against the flashlight. A cam-locking lever keeps the entire unit securely attached to the flashlight.
Fits: All flashlights and WeaponLights with a 1.37" bezel
- Fits 1.37" bezels
- Cam-locking lever keeps filter securely attached to flashlight
- Spring-loaded filter lid stays up when open, locks in closed position
- Provides secondary protection to flashlight window
- Helps preserve dark-adapted vision